18419721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{19009}}^1$

素因数の和:19048

約数の個数: 16

約数和(自身を含む): 27374400

約数和(自身を除く): 8954679

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 19009, 57027, 323153, 361171, 969459, 1083513, 6139907, 18419721]

約数ペア:

[(1, 18419721), (3, 6139907), (17, 1083513), (19, 969459), (51, 361171), (57, 323153), (323, 57027), (969, 19009)]