19979919873

素因数分解:

$3^2\times {\mathrm{1571}}^1\times {\mathrm{1413107}}^1$

素因数の和:1414684

約数の個数: 12

約数和(自身を含む): 28878275088

約数和(自身を除く): 8898355215

約数列:

[1, 3, 9, 1571, 4713, 14139, 1413107, 4239321, 12717963, 2219991097, 6659973291, 19979919873]

約数ペア:

[(1, 19979919873), (3, 6659973291), (9, 2219991097), (1571, 12717963), (4713, 4239321), (14139, 1413107)]