218888999

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{9781}}^1$

素因数の和:9950

約数の個数: 16

約数和(自身を含む): 262940160

約数和(自身を除く): 44051161

約数列:

[1, 7, 23, 139, 161, 973, 3197, 9781, 22379, 68467, 224963, 1359559, 1574741, 9516913, 31269857, 218888999]

約数ペア:

[(1, 218888999), (7, 31269857), (23, 9516913), (139, 1574741), (161, 1359559), (973, 224963), (3197, 68467), (9781, 22379)]