21048300

素因数分解:

$2^2\times 3^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:297

約数の個数: 216

約数和(自身を含む): 81515616

約数和(自身を除く): 60467316

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 25, 26, 28, 30, 35, 36, 39, 42, 45, 50, 52, 60, 63, 65, 70, 75, 78, 84, 90, 91, 100, 105, 117, 126, 130, 140, 150, 156, 175, 180, 182, 195, 210, 225, 234, 252, 257, 260, 273, 300, 315, 325, 350, 364, 390, 420, 450, 455, 468, 514, 525, 546, 585, 630, 650, 700, 771, 780, 819, 900, 910, 975, 1028, 1050, 1092, 1170, 1260, 1285, 1300, 1365, 1542, 1575, 1638, 1799, 1820, 1950, 2100, 2275, 2313, 2340, 2570, 2730, 2925, 3084, 3150, 3276, 3341, 3598, 3855, 3900, 4095, 4550, 4626, 5140, 5397, 5460, 5850, 6300, 6425, 6682, 6825, 7196, 7710, 8190, 8995, 9100, 9252, 10023, 10794, 11565, 11700, 12850, 13364, 13650, 15420, 16191, 16380, 16705, 17990, 19275, 20046, 20475, 21588, 23130, 23387, 25700, 26985, 27300, 30069, 32382, 33410, 35980, 38550, 40092, 40950, 44975, 46260, 46774, 50115, 53970, 57825, 60138, 64764, 66820, 70161, 77100, 80955, 81900, 83525, 89950, 93548, 100230, 107940, 115650, 116935, 120276, 134925, 140322, 150345, 161910, 167050, 179900, 200460, 210483, 231300, 233870, 250575, 269850, 280644, 300690, 323820, 334100, 350805, 404775, 420966, 467740, 501150, 539700, 584675, 601380, 701610, 751725, 809550, 841932, 1002300, 1052415, 1169350, 1403220, 1503450, 1619100, 1754025, 2104830, 2338700, 3006900, 3508050, 4209660, 5262075, 7016100, 10524150, 21048300]

約数ペア:

[(1, 21048300), (2, 10524150), (3, 7016100), (4, 5262075), (5, 4209660), (6, 3508050), (7, 3006900), (9, 2338700), (10, 2104830), (12, 1754025), (13, 1619100), (14, 1503450), (15, 1403220), (18, 1169350), (20, 1052415), (21, 1002300), (25, 841932), (26, 809550), (28, 751725), (30, 701610), (35, 601380), (36, 584675), (39, 539700), (42, 501150), (45, 467740), (50, 420966), (52, 404775), (60, 350805), (63, 334100), (65, 323820), (70, 300690), (75, 280644), (78, 269850), (84, 250575), (90, 233870), (91, 231300), (100, 210483), (105, 200460), (117, 179900), (126, 167050), (130, 161910), (140, 150345), (150, 140322), (156, 134925), (175, 120276), (180, 116935), (182, 115650), (195, 107940), (210, 100230), (225, 93548), (234, 89950), (252, 83525), (257, 81900), (260, 80955), (273, 77100), (300, 70161), (315, 66820), (325, 64764), (350, 60138), (364, 57825), (390, 53970), (420, 50115), (450, 46774), (455, 46260), (468, 44975), (514, 40950), (525, 40092), (546, 38550), (585, 35980), (630, 33410), (650, 32382), (700, 30069), (771, 27300), (780, 26985), (819, 25700), (900, 23387), (910, 23130), (975, 21588), (1028, 20475), (1050, 20046), (1092, 19275), (1170, 17990), (1260, 16705), (1285, 16380), (1300, 16191), (1365, 15420), (1542, 13650), (1575, 13364), (1638, 12850), (1799, 11700), (1820, 11565), (1950, 10794), (2100, 10023), (2275, 9252), (2313, 9100), (2340, 8995), (2570, 8190), (2730, 7710), (2925, 7196), (3084, 6825), (3150, 6682), (3276, 6425), (3341, 6300), (3598, 5850), (3855, 5460), (3900, 5397), (4095, 5140), (4550, 4626)]