21621840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{3917}}^1$

素因数の和:3956

約数の個数: 80

約数和(自身を含む): 69959808

約数和(自身を除く): 48337968

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 60, 69, 80, 92, 115, 120, 138, 184, 230, 240, 276, 345, 368, 460, 552, 690, 920, 1104, 1380, 1840, 2760, 3917, 5520, 7834, 11751, 15668, 19585, 23502, 31336, 39170, 47004, 58755, 62672, 78340, 90091, 94008, 117510, 156680, 180182, 188016, 235020, 270273, 313360, 360364, 450455, 470040, 540546, 720728, 900910, 940080, 1081092, 1351365, 1441456, 1801820, 2162184, 2702730, 3603640, 4324368, 5405460, 7207280, 10810920, 21621840]

約数ペア:

[(1, 21621840), (2, 10810920), (3, 7207280), (4, 5405460), (5, 4324368), (6, 3603640), (8, 2702730), (10, 2162184), (12, 1801820), (15, 1441456), (16, 1351365), (20, 1081092), (23, 940080), (24, 900910), (30, 720728), (40, 540546), (46, 470040), (48, 450455), (60, 360364), (69, 313360), (80, 270273), (92, 235020), (115, 188016), (120, 180182), (138, 156680), (184, 117510), (230, 94008), (240, 90091), (276, 78340), (345, 62672), (368, 58755), (460, 47004), (552, 39170), (690, 31336), (920, 23502), (1104, 19585), (1380, 15668), (1840, 11751), (2760, 7834), (3917, 5520)]