21562840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41467}}^1$

素因数の和:41491

約数の個数: 32

約数和(自身を含む): 52249680

約数和(自身を除く): 30686840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41467, 82934, 165868, 207335, 331736, 414670, 539071, 829340, 1078142, 1658680, 2156284, 2695355, 4312568, 5390710, 10781420, 21562840]

約数ペア:

[(1, 21562840), (2, 10781420), (4, 5390710), (5, 4312568), (8, 2695355), (10, 2156284), (13, 1658680), (20, 1078142), (26, 829340), (40, 539071), (52, 414670), (65, 331736), (104, 207335), (130, 165868), (260, 82934), (520, 41467)]