21859696

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9829}}^1$

素因数の和:9976

約数の個数: 20

約数和(自身を含む): 42662200

約数和(自身を除く): 20802504

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9829, 19658, 39316, 78632, 157264, 1366231, 2732462, 5464924, 10929848, 21859696]

約数ペア:

[(1, 21859696), (2, 10929848), (4, 5464924), (8, 2732462), (16, 1366231), (139, 157264), (278, 78632), (556, 39316), (1112, 19658), (2224, 9829)]