21225905

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{2203}}^1$

素因数の和:2296

約数の個数: 16

約数和(自身を含む): 26659584

約数和(自身を除く): 5433679

約数列:

[1, 5, 41, 47, 205, 235, 1927, 2203, 9635, 11015, 90323, 103541, 451615, 517705, 4245181, 21225905]

約数ペア:

[(1, 21225905), (5, 4245181), (41, 517705), (47, 451615), (205, 103541), (235, 90323), (1927, 11015), (2203, 9635)]