389702018

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{20123}}^1$

素因数の和:20569

約数の個数: 16

約数和(自身を含む): 611447616

約数和(自身を除く): 221745598

約数列:

[1, 2, 23, 46, 421, 842, 9683, 19366, 20123, 40246, 462829, 925658, 8471783, 16943566, 194851009, 389702018]

約数ペア:

[(1, 389702018), (2, 194851009), (23, 16943566), (46, 8471783), (421, 925658), (842, 462829), (9683, 40246), (19366, 20123)]