21489817

素因数分解:

${\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:340

約数の個数: 16

約数和(自身を含む): 23296000

約数和(自身を除く): 1806183

約数列:

[1, 19, 79, 103, 139, 1501, 1957, 2641, 8137, 10981, 14317, 154603, 208639, 272023, 1131043, 21489817]

約数ペア:

[(1, 21489817), (19, 1131043), (79, 272023), (103, 208639), (139, 154603), (1501, 14317), (1957, 10981), (2641, 8137)]