20379991

素因数分解:

${\mathrm{17}}^2\times {\mathrm{97}}^1\times {\mathrm{727}}^1$

素因数の和:858

約数の個数: 12

約数和(自身を含む): 21902608

約数和(自身を除く): 1522617

約数列:

[1, 17, 97, 289, 727, 1649, 12359, 28033, 70519, 210103, 1198823, 20379991]

約数ペア:

[(1, 20379991), (17, 1198823), (97, 210103), (289, 70519), (727, 28033), (1649, 12359)]