221651638

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{52301}}^1$

素因数の和:52479

約数の個数: 16

約数和(自身を含む): 360256176

約数和(自身を除く): 138604538

約数列:

[1, 2, 13, 26, 163, 326, 2119, 4238, 52301, 104602, 679913, 1359826, 8525063, 17050126, 110825819, 221651638]

約数ペア:

[(1, 221651638), (2, 110825819), (13, 17050126), (26, 8525063), (163, 1359826), (326, 679913), (2119, 104602), (4238, 52301)]