20180709

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{149}}^2$

素因数の和:405

約数の個数: 18

約数和(自身を含む): 29637426

約数和(自身を除く): 9456717

約数列:

[1, 3, 9, 101, 149, 303, 447, 909, 1341, 15049, 22201, 45147, 66603, 135441, 199809, 2242301, 6726903, 20180709]

約数ペア:

[(1, 20180709), (3, 6726903), (9, 2242301), (101, 199809), (149, 135441), (303, 66603), (447, 45147), (909, 22201), (1341, 15049)]