21885815

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{32911}}^1$

素因数の和:32942

約数の個数: 16

約数和(自身を含む): 31595520

約数和(自身を除く): 9709705

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 32911, 164555, 230377, 625309, 1151885, 3126545, 4377163, 21885815]

約数ペア:

[(1, 21885815), (5, 4377163), (7, 3126545), (19, 1151885), (35, 625309), (95, 230377), (133, 164555), (665, 32911)]