18215888

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{21481}}^1$

素因数の和:21542

約数の個数: 20

約数和(自身を含む): 35960868

約数和(自身を除く): 17744980

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 21481, 42962, 85924, 171848, 343696, 1138493, 2276986, 4553972, 9107944, 18215888]

約数ペア:

[(1, 18215888), (2, 9107944), (4, 4553972), (8, 2276986), (16, 1138493), (53, 343696), (106, 171848), (212, 85924), (424, 42962), (848, 21481)]