21789998

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{9719}}^1$

素因数の和:9799

約数の個数: 16

約数和(自身を含む): 34992000

約数和(自身を除く): 13202002

約数列:

[1, 2, 19, 38, 59, 118, 1121, 2242, 9719, 19438, 184661, 369322, 573421, 1146842, 10894999, 21789998]

約数ペア:

[(1, 21789998), (2, 10894999), (19, 1146842), (38, 573421), (59, 369322), (118, 184661), (1121, 19438), (2242, 9719)]