21331141

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{367}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 24482304

約数和(自身を除く): 3151163

約数列:

[1, 13, 17, 221, 263, 367, 3419, 4471, 4771, 6239, 58123, 81107, 96521, 1254773, 1640857, 21331141]

約数ペア:

[(1, 21331141), (13, 1640857), (17, 1254773), (221, 96521), (263, 81107), (367, 58123), (3419, 6239), (4471, 4771)]