21331648

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{25639}}^1$

素因数の和:25664

約数の個数: 28

約数和(自身を含む): 45587920

約数和(自身を除く): 24256272

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 25639, 51278, 102556, 205112, 333307, 410224, 666614, 820448, 1333228, 1640896, 2666456, 5332912, 10665824, 21331648]

約数ペア:

[(1, 21331648), (2, 10665824), (4, 5332912), (8, 2666456), (13, 1640896), (16, 1333228), (26, 820448), (32, 666614), (52, 410224), (64, 333307), (104, 205112), (208, 102556), (416, 51278), (832, 25639)]