21263079

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{821}}^1$

素因数の和:1010

約数の個数: 16

約数和(自身を含む): 29000160

約数和(自身を除く): 7737081

約数列:

[1, 3, 89, 97, 267, 291, 821, 2463, 8633, 25899, 73069, 79637, 219207, 238911, 7087693, 21263079]

約数ペア:

[(1, 21263079), (3, 7087693), (89, 238911), (97, 219207), (267, 79637), (291, 73069), (821, 25899), (2463, 8633)]