31627905

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{4001}}^1$

素因数の和:4057

約数の個数: 32

約数和(自身を含む): 55323648

約数和(自身を除く): 23695743

約数列:

[1, 3, 5, 15, 17, 31, 51, 85, 93, 155, 255, 465, 527, 1581, 2635, 4001, 7905, 12003, 20005, 60015, 68017, 124031, 204051, 340085, 372093, 620155, 1020255, 1860465, 2108527, 6325581, 10542635, 31627905]

約数ペア:

[(1, 31627905), (3, 10542635), (5, 6325581), (15, 2108527), (17, 1860465), (31, 1020255), (51, 620155), (85, 372093), (93, 340085), (155, 204051), (255, 124031), (465, 68017), (527, 60015), (1581, 20005), (2635, 12003), (4001, 7905)]