20919916

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{1493}}^1$

素因数の和:1641

約数の個数: 24

約数和(自身を含む): 38150784

約数和(自身を除く): 17230868

約数列:

[1, 2, 4, 31, 62, 113, 124, 226, 452, 1493, 2986, 3503, 5972, 7006, 14012, 46283, 92566, 168709, 185132, 337418, 674836, 5229979, 10459958, 20919916]

約数ペア:

[(1, 20919916), (2, 10459958), (4, 5229979), (31, 674836), (62, 337418), (113, 185132), (124, 168709), (226, 92566), (452, 46283), (1493, 14012), (2986, 7006), (3503, 5972)]