20467251

素因数分解:

$3^2\times 7^2\times {\mathrm{46411}}^1$

素因数の和:46431

約数の個数: 18

約数和(自身を含む): 34391292

約数和(自身を除く): 13924041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 46411, 139233, 324877, 417699, 974631, 2274139, 2923893, 6822417, 20467251]

約数ペア:

[(1, 20467251), (3, 6822417), (7, 2923893), (9, 2274139), (21, 974631), (49, 417699), (63, 324877), (147, 139233), (441, 46411)]