21209696

素因数分解:

$2^5\times {\mathrm{257}}^1\times {\mathrm{2579}}^1$

素因数の和:2846

約数の個数: 24

約数和(自身を含む): 41935320

約数和(自身を除く): 20725624

約数列:

[1, 2, 4, 8, 16, 32, 257, 514, 1028, 2056, 2579, 4112, 5158, 8224, 10316, 20632, 41264, 82528, 662803, 1325606, 2651212, 5302424, 10604848, 21209696]

約数ペア:

[(1, 21209696), (2, 10604848), (4, 5302424), (8, 2651212), (16, 1325606), (32, 662803), (257, 82528), (514, 41264), (1028, 20632), (2056, 10316), (2579, 8224), (4112, 5158)]