193561809

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{9473}}^1$

素因数の和:9629

約数の個数: 24

約数和(自身を含む): 302410080

約数和(自身を除く): 108848271

約数列:

[1, 3, 7, 21, 49, 139, 147, 417, 973, 2919, 6811, 9473, 20433, 28419, 66311, 198933, 464177, 1316747, 1392531, 3950241, 9217229, 27651687, 64520603, 193561809]

約数ペア:

[(1, 193561809), (3, 64520603), (7, 27651687), (21, 9217229), (49, 3950241), (139, 1392531), (147, 1316747), (417, 464177), (973, 198933), (2919, 66311), (6811, 28419), (9473, 20433)]