21136577

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{877}}^1$

素因数の和:1208

約数の個数: 16

約数和(自身を含む): 26466432

約数和(自身を除く): 5329855

約数列:

[1, 7, 11, 77, 313, 877, 2191, 3443, 6139, 9647, 24101, 67529, 274501, 1921507, 3019511, 21136577]

約数ペア:

[(1, 21136577), (7, 3019511), (11, 1921507), (77, 274501), (313, 67529), (877, 24101), (2191, 9647), (3443, 6139)]