21771287

素因数分解:

${\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{233}}^1$

素因数の和:370

約数の個数: 16

約数和(自身を含む): 23351328

約数和(自身を除く): 1580041

約数列:

[1, 41, 43, 53, 233, 1763, 2173, 2279, 9553, 10019, 12349, 93439, 410779, 506309, 531007, 21771287]

約数ペア:

[(1, 21771287), (41, 531007), (43, 506309), (53, 410779), (233, 93439), (1763, 12349), (2173, 10019), (2279, 9553)]