19753456

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72623}}^1$

素因数の和:72648

約数の個数: 20

約数和(自身を含む): 40524192

約数和(自身を除く): 20770736

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72623, 145246, 290492, 580984, 1161968, 1234591, 2469182, 4938364, 9876728, 19753456]

約数ペア:

[(1, 19753456), (2, 9876728), (4, 4938364), (8, 2469182), (16, 1234591), (17, 1161968), (34, 580984), (68, 290492), (136, 145246), (272, 72623)]