21343920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6841}}^1$

素因数の和:6870

約数の個数: 80

約数和(自身を含む): 71266272

約数和(自身を除く): 49922352

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6841, 13682, 20523, 27364, 34205, 41046, 54728, 68410, 82092, 88933, 102615, 109456, 136820, 164184, 177866, 205230, 266799, 273640, 328368, 355732, 410460, 444665, 533598, 547280, 711464, 820920, 889330, 1067196, 1333995, 1422928, 1641840, 1778660, 2134392, 2667990, 3557320, 4268784, 5335980, 7114640, 10671960, 21343920]

約数ペア:

[(1, 21343920), (2, 10671960), (3, 7114640), (4, 5335980), (5, 4268784), (6, 3557320), (8, 2667990), (10, 2134392), (12, 1778660), (13, 1641840), (15, 1422928), (16, 1333995), (20, 1067196), (24, 889330), (26, 820920), (30, 711464), (39, 547280), (40, 533598), (48, 444665), (52, 410460), (60, 355732), (65, 328368), (78, 273640), (80, 266799), (104, 205230), (120, 177866), (130, 164184), (156, 136820), (195, 109456), (208, 102615), (240, 88933), (260, 82092), (312, 68410), (390, 54728), (520, 41046), (624, 34205), (780, 27364), (1040, 20523), (1560, 13682), (3120, 6841)]