2161166395

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{820177}}^1$

素因数の和:820230

約数の個数: 16

約数和(自身を含む): 2834535168

約数和(自身を除く): 673368773

約数列:

[1, 5, 17, 31, 85, 155, 527, 2635, 820177, 4100885, 13943009, 25425487, 69715045, 127127435, 432233279, 2161166395]

約数ペア:

[(1, 2161166395), (5, 432233279), (17, 127127435), (31, 69715045), (85, 25425487), (155, 13943009), (527, 4100885), (2635, 820177)]