21232813

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1579}}^1$

素因数の和:1716

約数の個数: 16

約数和(自身を含む): 25937280

約数和(自身を除く): 4704467

約数列:

[1, 7, 17, 113, 119, 791, 1579, 1921, 11053, 13447, 26843, 178427, 187901, 1248989, 3033259, 21232813]

約数ペア:

[(1, 21232813), (7, 3033259), (17, 1248989), (113, 187901), (119, 178427), (791, 26843), (1579, 13447), (1921, 11053)]