9901555

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{503}}^1$

素因数の和:666

約数の個数: 16

約数和(自身を含む): 12386304

約数和(自身を除く): 2484749

約数列:

[1, 5, 31, 127, 155, 503, 635, 2515, 3937, 15593, 19685, 63881, 77965, 319405, 1980311, 9901555]

約数ペア:

[(1, 9901555), (5, 1980311), (31, 319405), (127, 77965), (155, 63881), (503, 19685), (635, 15593), (2515, 3937)]