15721915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{9857}}^1$

素因数の和:9902

約数の個数: 16

約数和(自身を含む): 21293280

約数和(自身を除く): 5571365

約数列:

[1, 5, 11, 29, 55, 145, 319, 1595, 9857, 49285, 108427, 285853, 542135, 1429265, 3144383, 15721915]

約数ペア:

[(1, 15721915), (5, 3144383), (11, 1429265), (29, 542135), (55, 285853), (145, 108427), (319, 49285), (1595, 9857)]