51221989

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{24473}}^1$

素因数の和:24516

約数の個数: 16

約数和(自身を含む): 65786112

約数和(自身を除く): 14564123

約数列:

[1, 7, 13, 23, 91, 161, 299, 2093, 24473, 171311, 318149, 562879, 2227043, 3940153, 7317427, 51221989]

約数ペア:

[(1, 51221989), (7, 7317427), (13, 3940153), (23, 2227043), (91, 562879), (161, 318149), (299, 171311), (2093, 24473)]