217720986

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{347}}^1\times {\mathrm{14939}}^1$

素因数の和:15298

約数の個数: 32

約数和(自身を含む): 499115520

約数和(自身を除く): 281394534

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 347, 694, 1041, 2082, 2429, 4858, 7287, 14574, 14939, 29878, 44817, 89634, 104573, 209146, 313719, 627438, 5183833, 10367666, 15551499, 31102998, 36286831, 72573662, 108860493, 217720986]

約数ペア:

[(1, 217720986), (2, 108860493), (3, 72573662), (6, 36286831), (7, 31102998), (14, 15551499), (21, 10367666), (42, 5183833), (347, 627438), (694, 313719), (1041, 209146), (2082, 104573), (2429, 89634), (4858, 44817), (7287, 29878), (14574, 14939)]