21352335

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{977}}^1$

素因数の和:1063

約数の個数: 32

約数和(自身を含む): 36052992

約数和(自身を除く): 14700657

約数列:

[1, 3, 5, 15, 31, 47, 93, 141, 155, 235, 465, 705, 977, 1457, 2931, 4371, 4885, 7285, 14655, 21855, 30287, 45919, 90861, 137757, 151435, 229595, 454305, 688785, 1423489, 4270467, 7117445, 21352335]

約数ペア:

[(1, 21352335), (3, 7117445), (5, 4270467), (15, 1423489), (31, 688785), (47, 454305), (93, 229595), (141, 151435), (155, 137757), (235, 90861), (465, 45919), (705, 30287), (977, 21855), (1457, 14655), (2931, 7285), (4371, 4885)]