21171770

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{57221}}^1$

素因数の和:57265

約数の個数: 16

約数和(自身を含む): 39139848

約数和(自身を除く): 17968078

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 57221, 114442, 286105, 572210, 2117177, 4234354, 10585885, 21171770]

約数ペア:

[(1, 21171770), (2, 10585885), (5, 4234354), (10, 2117177), (37, 572210), (74, 286105), (185, 114442), (370, 57221)]