21797684

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{191}}^1\times {\mathrm{277}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 38857728

約数和(自身を除く): 17060044

約数列:

[1, 2, 4, 103, 191, 206, 277, 382, 412, 554, 764, 1108, 19673, 28531, 39346, 52907, 57062, 78692, 105814, 114124, 211628, 5449421, 10898842, 21797684]

約数ペア:

[(1, 21797684), (2, 10898842), (4, 5449421), (103, 211628), (191, 114124), (206, 105814), (277, 78692), (382, 57062), (412, 52907), (554, 39346), (764, 28531), (1108, 19673)]