21431509

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3697}}^1$

素因数の和:3756

約数の個数: 16

約数和(自身を含む): 25560576

約数和(自身を除く): 4129067

約数列:

[1, 11, 17, 31, 187, 341, 527, 3697, 5797, 40667, 62849, 114607, 691339, 1260677, 1948319, 21431509]

約数ペア:

[(1, 21431509), (11, 1948319), (17, 1260677), (31, 691339), (187, 114607), (341, 62849), (527, 40667), (3697, 5797)]