18774217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1553}}^1$

素因数の和:1728

約数の個数: 16

約数和(自身を含む): 23571072

約数和(自身を除く): 4796855

約数列:

[1, 7, 11, 77, 157, 1099, 1553, 1727, 10871, 12089, 17083, 119581, 243821, 1706747, 2682031, 18774217]

約数ペア:

[(1, 18774217), (7, 2682031), (11, 1706747), (77, 243821), (157, 119581), (1099, 17083), (1553, 12089), (1727, 10871)]