12940912

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{19727}}^1$

素因数の和:19776

約数の個数: 20

約数和(自身を含む): 25685856

約数和(自身を除く): 12744944

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 19727, 39454, 78908, 157816, 315632, 808807, 1617614, 3235228, 6470456, 12940912]

約数ペア:

[(1, 12940912), (2, 6470456), (4, 3235228), (8, 1617614), (16, 808807), (41, 315632), (82, 157816), (164, 78908), (328, 39454), (656, 19727)]