21537310

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19759}}^1$

素因数の和:19875

約数の個数: 16

約数和(自身を含む): 39124800

約数和(自身を除く): 17587490

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 19759, 39518, 98795, 197590, 2153731, 4307462, 10768655, 21537310]

約数ペア:

[(1, 21537310), (2, 10768655), (5, 4307462), (10, 2153731), (109, 197590), (218, 98795), (545, 39518), (1090, 19759)]