31621278

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{405401}}^1$

素因数の和:405419

約数の個数: 16

約数和(自身を含む): 68107536

約数和(自身を除く): 36486258

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 405401, 810802, 1216203, 2432406, 5270213, 10540426, 15810639, 31621278]

約数ペア:

[(1, 31621278), (2, 15810639), (3, 10540426), (6, 5270213), (13, 2432406), (26, 1216203), (39, 810802), (78, 405401)]