20165915

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52379}}^1$

素因数の和:52402

約数の個数: 16

約数和(自身を含む): 30170880

約数和(自身を除く): 10004965

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 52379, 261895, 366653, 576169, 1833265, 2880845, 4033183, 20165915]

約数ペア:

[(1, 20165915), (5, 4033183), (7, 2880845), (11, 1833265), (35, 576169), (55, 366653), (77, 261895), (385, 52379)]