217138909

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{4111}}^1$

素因数の和:4380

約数の個数: 16

約数和(自身を含む): 248693760

約数和(自身を除く): 31554851

約数列:

[1, 13, 17, 221, 239, 3107, 4063, 4111, 52819, 53443, 69887, 908531, 982529, 12772877, 16702993, 217138909]

約数ペア:

[(1, 217138909), (13, 16702993), (17, 12772877), (221, 982529), (239, 908531), (3107, 69887), (4063, 53443), (4111, 52819)]