21379659

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59887}}^1$

素因数の和:59914

約数の個数: 16

約数和(自身を含む): 34495488

約数和(自身を除く): 13115829

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 59887, 179661, 419209, 1018079, 1257627, 3054237, 7126553, 21379659]

約数ペア:

[(1, 21379659), (3, 7126553), (7, 3054237), (17, 1257627), (21, 1018079), (51, 419209), (119, 179661), (357, 59887)]