19812668

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{2531}}^1$

素因数の和:2657

約数の個数: 24

約数和(自身を含む): 36865920

約数和(自身を除く): 17053252

約数列:

[1, 2, 4, 19, 38, 76, 103, 206, 412, 1957, 2531, 3914, 5062, 7828, 10124, 48089, 96178, 192356, 260693, 521386, 1042772, 4953167, 9906334, 19812668]

約数ペア:

[(1, 19812668), (2, 9906334), (4, 4953167), (19, 1042772), (38, 521386), (76, 260693), (103, 192356), (206, 96178), (412, 48089), (1957, 10124), (2531, 7828), (3914, 5062)]