21109140

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:159

約数の個数: 192

約数和(自身を含む): 73758720

約数和(自身を除く): 52649580

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 31, 36, 39, 45, 52, 54, 60, 62, 65, 78, 90, 93, 97, 108, 117, 124, 130, 135, 155, 156, 180, 186, 194, 195, 234, 260, 270, 279, 291, 310, 351, 372, 388, 390, 403, 465, 468, 485, 540, 558, 582, 585, 620, 702, 780, 806, 837, 873, 930, 970, 1116, 1164, 1170, 1209, 1261, 1395, 1404, 1455, 1612, 1674, 1746, 1755, 1860, 1940, 2015, 2340, 2418, 2522, 2619, 2790, 2910, 3007, 3348, 3492, 3510, 3627, 3783, 4030, 4185, 4365, 4836, 5044, 5238, 5580, 5820, 6014, 6045, 6305, 7020, 7254, 7566, 8060, 8370, 8730, 9021, 10476, 10881, 11349, 12028, 12090, 12610, 13095, 14508, 15035, 15132, 16740, 17460, 18042, 18135, 18915, 21762, 22698, 24180, 25220, 26190, 27063, 30070, 34047, 36084, 36270, 37830, 39091, 43524, 45105, 45396, 52380, 54126, 54405, 56745, 60140, 68094, 72540, 75660, 78182, 81189, 90210, 108252, 108810, 113490, 117273, 135315, 136188, 156364, 162378, 170235, 180420, 195455, 217620, 226980, 234546, 270630, 324756, 340470, 351819, 390910, 405945, 469092, 541260, 586365, 680940, 703638, 781820, 811890, 1055457, 1172730, 1407276, 1623780, 1759095, 2110914, 2345460, 3518190, 4221828, 5277285, 7036380, 10554570, 21109140]

約数ペア:

[(1, 21109140), (2, 10554570), (3, 7036380), (4, 5277285), (5, 4221828), (6, 3518190), (9, 2345460), (10, 2110914), (12, 1759095), (13, 1623780), (15, 1407276), (18, 1172730), (20, 1055457), (26, 811890), (27, 781820), (30, 703638), (31, 680940), (36, 586365), (39, 541260), (45, 469092), (52, 405945), (54, 390910), (60, 351819), (62, 340470), (65, 324756), (78, 270630), (90, 234546), (93, 226980), (97, 217620), (108, 195455), (117, 180420), (124, 170235), (130, 162378), (135, 156364), (155, 136188), (156, 135315), (180, 117273), (186, 113490), (194, 108810), (195, 108252), (234, 90210), (260, 81189), (270, 78182), (279, 75660), (291, 72540), (310, 68094), (351, 60140), (372, 56745), (388, 54405), (390, 54126), (403, 52380), (465, 45396), (468, 45105), (485, 43524), (540, 39091), (558, 37830), (582, 36270), (585, 36084), (620, 34047), (702, 30070), (780, 27063), (806, 26190), (837, 25220), (873, 24180), (930, 22698), (970, 21762), (1116, 18915), (1164, 18135), (1170, 18042), (1209, 17460), (1261, 16740), (1395, 15132), (1404, 15035), (1455, 14508), (1612, 13095), (1674, 12610), (1746, 12090), (1755, 12028), (1860, 11349), (1940, 10881), (2015, 10476), (2340, 9021), (2418, 8730), (2522, 8370), (2619, 8060), (2790, 7566), (2910, 7254), (3007, 7020), (3348, 6305), (3492, 6045), (3510, 6014), (3627, 5820), (3783, 5580), (4030, 5238), (4185, 5044), (4365, 4836)]