161985554

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{109}}^2\times {\mathrm{401}}^1$

素因数の和:638

約数の個数: 24

約数和(自身を含む): 260300628

約数和(自身を除く): 98315074

約数列:

[1, 2, 17, 34, 109, 218, 401, 802, 1853, 3706, 6817, 11881, 13634, 23762, 43709, 87418, 201977, 403954, 743053, 1486106, 4764281, 9528562, 80992777, 161985554]

約数ペア:

[(1, 161985554), (2, 80992777), (17, 9528562), (34, 4764281), (109, 1486106), (218, 743053), (401, 403954), (802, 201977), (1853, 87418), (3706, 43709), (6817, 23762), (11881, 13634)]