21113828

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{331}}^1\times {\mathrm{431}}^1$

素因数の和:803

約数の個数: 24

約数和(自身を含む): 38150784

約数和(自身を除く): 17036956

約数列:

[1, 2, 4, 37, 74, 148, 331, 431, 662, 862, 1324, 1724, 12247, 15947, 24494, 31894, 48988, 63788, 142661, 285322, 570644, 5278457, 10556914, 21113828]

約数ペア:

[(1, 21113828), (2, 10556914), (4, 5278457), (37, 570644), (74, 285322), (148, 142661), (331, 63788), (431, 48988), (662, 31894), (862, 24494), (1324, 15947), (1724, 12247)]