21851647

素因数分解:

${\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{293}}^1$

素因数の和:458

約数の個数: 16

約数和(自身を含む): 24004512

約数和(自身を除く): 2152865

約数列:

[1, 17, 41, 107, 293, 697, 1819, 4387, 4981, 12013, 31351, 74579, 204221, 532967, 1285391, 21851647]

約数ペア:

[(1, 21851647), (17, 1285391), (41, 532967), (107, 204221), (293, 74579), (697, 31351), (1819, 12013), (4387, 4981)]