208591011

素因数分解:

$3^3\times {\mathrm{109}}^1\times {\mathrm{70877}}^1$

素因数の和:70995

約数の個数: 16

約数和(自身を含む): 311863200

約数和(自身を除く): 103272189

約数列:

[1, 3, 9, 27, 109, 327, 981, 2943, 70877, 212631, 637893, 1913679, 7725593, 23176779, 69530337, 208591011]

約数ペア:

[(1, 208591011), (3, 69530337), (9, 23176779), (27, 7725593), (109, 1913679), (327, 637893), (981, 212631), (2943, 70877)]