20525659

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{337}}^1$

素因数の和:475

約数の個数: 24

約数和(自身を含む): 26355888

約数和(自身を除く): 5830229

約数列:

[1, 7, 11, 49, 77, 113, 337, 539, 791, 1243, 2359, 3707, 5537, 8701, 16513, 25949, 38081, 60907, 181643, 266567, 418891, 1865969, 2932237, 20525659]

約数ペア:

[(1, 20525659), (7, 2932237), (11, 1865969), (49, 418891), (77, 266567), (113, 181643), (337, 60907), (539, 38081), (791, 25949), (1243, 16513), (2359, 8701), (3707, 5537)]