21000691740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1\times {\mathrm{3739}}^1$

素因数の和:4112

約数の個数: 192

約数和(自身を含む): 69004615680

約数和(自身を除く): 48003923940

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 60, 70, 84, 86, 105, 129, 140, 172, 210, 215, 258, 301, 311, 420, 430, 516, 602, 622, 645, 860, 903, 933, 1204, 1244, 1290, 1505, 1555, 1806, 1866, 2177, 2580, 3010, 3110, 3612, 3732, 3739, 4354, 4515, 4665, 6020, 6220, 6531, 7478, 8708, 9030, 9330, 10885, 11217, 13062, 13373, 14956, 18060, 18660, 18695, 21770, 22434, 26124, 26173, 26746, 32655, 37390, 40119, 43540, 44868, 52346, 53492, 56085, 65310, 66865, 74780, 78519, 80238, 93611, 104692, 112170, 130620, 130865, 133730, 157038, 160476, 160777, 187222, 200595, 224340, 261730, 267460, 280833, 314076, 321554, 374444, 392595, 401190, 468055, 482331, 523460, 561666, 643108, 785190, 802380, 803885, 936110, 964662, 1123332, 1125439, 1162829, 1404165, 1570380, 1607770, 1872220, 1929324, 2250878, 2325658, 2411655, 2808330, 3215540, 3376317, 3488487, 4501756, 4651316, 4823310, 5616660, 5627195, 5814145, 6752634, 6976974, 8139803, 9646620, 11254390, 11628290, 13505268, 13953948, 16279606, 16881585, 17442435, 22508780, 23256580, 24419409, 32559212, 33763170, 34884870, 40699015, 48838818, 50001647, 67526340, 69769740, 81398030, 97677636, 100003294, 122097045, 150004941, 162796060, 200006588, 244194090, 250008235, 300009882, 350011529, 488388180, 500016470, 600019764, 700023058, 750024705, 1000032940, 1050034587, 1400046116, 1500049410, 1750057645, 2100069174, 3000098820, 3500115290, 4200138348, 5250172935, 7000230580, 10500345870, 21000691740]

約数ペア:

[(1, 21000691740), (2, 10500345870), (3, 7000230580), (4, 5250172935), (5, 4200138348), (6, 3500115290), (7, 3000098820), (10, 2100069174), (12, 1750057645), (14, 1500049410), (15, 1400046116), (20, 1050034587), (21, 1000032940), (28, 750024705), (30, 700023058), (35, 600019764), (42, 500016470), (43, 488388180), (60, 350011529), (70, 300009882), (84, 250008235), (86, 244194090), (105, 200006588), (129, 162796060), (140, 150004941), (172, 122097045), (210, 100003294), (215, 97677636), (258, 81398030), (301, 69769740), (311, 67526340), (420, 50001647), (430, 48838818), (516, 40699015), (602, 34884870), (622, 33763170), (645, 32559212), (860, 24419409), (903, 23256580), (933, 22508780), (1204, 17442435), (1244, 16881585), (1290, 16279606), (1505, 13953948), (1555, 13505268), (1806, 11628290), (1866, 11254390), (2177, 9646620), (2580, 8139803), (3010, 6976974), (3110, 6752634), (3612, 5814145), (3732, 5627195), (3739, 5616660), (4354, 4823310), (4515, 4651316), (4665, 4501756), (6020, 3488487), (6220, 3376317), (6531, 3215540), (7478, 2808330), (8708, 2411655), (9030, 2325658), (9330, 2250878), (10885, 1929324), (11217, 1872220), (13062, 1607770), (13373, 1570380), (14956, 1404165), (18060, 1162829), (18660, 1125439), (18695, 1123332), (21770, 964662), (22434, 936110), (26124, 803885), (26173, 802380), (26746, 785190), (32655, 643108), (37390, 561666), (40119, 523460), (43540, 482331), (44868, 468055), (52346, 401190), (53492, 392595), (56085, 374444), (65310, 321554), (66865, 314076), (74780, 280833), (78519, 267460), (80238, 261730), (93611, 224340), (104692, 200595), (112170, 187222), (130620, 160777), (130865, 160476), (133730, 157038)]