20180238

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{258721}}^1$

素因数の和:258739

約数の個数: 16

約数和(自身を含む): 43465296

約数和(自身を除く): 23285058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 258721, 517442, 776163, 1552326, 3363373, 6726746, 10090119, 20180238]

約数ペア:

[(1, 20180238), (2, 10090119), (3, 6726746), (6, 3363373), (13, 1552326), (26, 776163), (39, 517442), (78, 258721)]