21148920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4519}}^1$

素因数の和:4549

約数の個数: 96

約数和(自身を含む): 74037600

約数和(自身を除く): 52888680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 30, 36, 39, 40, 45, 52, 60, 65, 72, 78, 90, 104, 117, 120, 130, 156, 180, 195, 234, 260, 312, 360, 390, 468, 520, 585, 780, 936, 1170, 1560, 2340, 4519, 4680, 9038, 13557, 18076, 22595, 27114, 36152, 40671, 45190, 54228, 58747, 67785, 81342, 90380, 108456, 117494, 135570, 162684, 176241, 180760, 203355, 234988, 271140, 293735, 325368, 352482, 406710, 469976, 528723, 542280, 587470, 704964, 813420, 881205, 1057446, 1174940, 1409928, 1626840, 1762410, 2114892, 2349880, 2643615, 3524820, 4229784, 5287230, 7049640, 10574460, 21148920]

約数ペア:

[(1, 21148920), (2, 10574460), (3, 7049640), (4, 5287230), (5, 4229784), (6, 3524820), (8, 2643615), (9, 2349880), (10, 2114892), (12, 1762410), (13, 1626840), (15, 1409928), (18, 1174940), (20, 1057446), (24, 881205), (26, 813420), (30, 704964), (36, 587470), (39, 542280), (40, 528723), (45, 469976), (52, 406710), (60, 352482), (65, 325368), (72, 293735), (78, 271140), (90, 234988), (104, 203355), (117, 180760), (120, 176241), (130, 162684), (156, 135570), (180, 117494), (195, 108456), (234, 90380), (260, 81342), (312, 67785), (360, 58747), (390, 54228), (468, 45190), (520, 40671), (585, 36152), (780, 27114), (936, 22595), (1170, 18076), (1560, 13557), (2340, 9038), (4519, 4680)]