31980291

素因数分解:

$3^1\times 7^3\times {\mathrm{31079}}^1$

素因数の和:31103

約数の個数: 16

約数和(自身を含む): 49728000

約数和(自身を除く): 17747709

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 31079, 93237, 217553, 652659, 1522871, 4568613, 10660097, 31980291]

約数ペア:

[(1, 31980291), (3, 10660097), (7, 4568613), (21, 1522871), (49, 652659), (147, 217553), (343, 93237), (1029, 31079)]