21219649

素因数分解:

${\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{1117}}^1$

素因数の和:1296

約数の個数: 12

約数和(自身を含む): 23493652

約数和(自身を除く): 2274003

約数列:

[1, 11, 121, 157, 1117, 1727, 12287, 18997, 135157, 175369, 1929059, 21219649]

約数ペア:

[(1, 21219649), (11, 1929059), (121, 175369), (157, 135157), (1117, 18997), (1727, 12287)]