20569810

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{33721}}^1$

素因数の和:33789

約数の個数: 16

約数和(自身を含む): 37633752

約数和(自身を除く): 17063942

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 33721, 67442, 168605, 337210, 2056981, 4113962, 10284905, 20569810]

約数ペア:

[(1, 20569810), (2, 10284905), (5, 4113962), (10, 2056981), (61, 337210), (122, 168605), (305, 67442), (610, 33721)]