18641217

素因数分解:

$3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{601}}^1$

素因数の和:829

約数の個数: 24

約数和(自身を含む): 29098272

約数和(自身を除く): 10457055

約数列:

[1, 3, 7, 21, 49, 147, 211, 601, 633, 1477, 1803, 4207, 4431, 10339, 12621, 29449, 31017, 88347, 126811, 380433, 887677, 2663031, 6213739, 18641217]

約数ペア:

[(1, 18641217), (3, 6213739), (7, 2663031), (21, 887677), (49, 380433), (147, 126811), (211, 88347), (601, 31017), (633, 29449), (1477, 12621), (1803, 10339), (4207, 4431)]