20716218

素因数分解:

$2^1\times 3^2\times {\mathrm{313}}^1\times {\mathrm{3677}}^1$

素因数の和:3998

約数の個数: 24

約数和(自身を含む): 45040788

約数和(自身を除く): 24324570

約数列:

[1, 2, 3, 6, 9, 18, 313, 626, 939, 1878, 2817, 3677, 5634, 7354, 11031, 22062, 33093, 66186, 1150901, 2301802, 3452703, 6905406, 10358109, 20716218]

約数ペア:

[(1, 20716218), (2, 10358109), (3, 6905406), (6, 3452703), (9, 2301802), (18, 1150901), (313, 66186), (626, 33093), (939, 22062), (1878, 11031), (2817, 7354), (3677, 5634)]