21397531

素因数分解:

${\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:366

約数の個数: 16

約数和(自身を含む): 22952160

約数和(自身を除く): 1554629

約数列:

[1, 41, 43, 53, 229, 1763, 2173, 2279, 9389, 9847, 12137, 93439, 403727, 497617, 521891, 21397531]

約数ペア:

[(1, 21397531), (41, 521891), (43, 497617), (53, 403727), (229, 93439), (1763, 12137), (2173, 9847), (2279, 9389)]