20180121

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{751}}^1$

素因数の和:833

約数の個数: 24

約数和(自身を含む): 29725056

約数和(自身を除く): 9544935

約数列:

[1, 3, 13, 39, 53, 159, 169, 507, 689, 751, 2067, 2253, 8957, 9763, 26871, 29289, 39803, 119409, 126919, 380757, 517439, 1552317, 6726707, 20180121]

約数ペア:

[(1, 20180121), (3, 6726707), (13, 1552317), (39, 517439), (53, 380757), (159, 126919), (169, 119409), (507, 39803), (689, 29289), (751, 26871), (2067, 9763), (2253, 8957)]