21904484

素因数分解:

$2^2\times 7^1\times {\mathrm{809}}^1\times {\mathrm{967}}^1$

素因数の和:1787

約数の個数: 24

約数和(自身を含む): 43908480

約数和(自身を除く): 22003996

約数列:

[1, 2, 4, 7, 14, 28, 809, 967, 1618, 1934, 3236, 3868, 5663, 6769, 11326, 13538, 22652, 27076, 782303, 1564606, 3129212, 5476121, 10952242, 21904484]

約数ペア:

[(1, 21904484), (2, 10952242), (4, 5476121), (7, 3129212), (14, 1564606), (28, 782303), (809, 27076), (967, 22652), (1618, 13538), (1934, 11326), (3236, 6769), (3868, 5663)]