17908220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81401}}^1$

素因数の和:81421

約数の個数: 24

約数和(自身を含む): 41026608

約数和(自身を除く): 23118388

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 81401, 162802, 325604, 407005, 814010, 895411, 1628020, 1790822, 3581644, 4477055, 8954110, 17908220]

約数ペア:

[(1, 17908220), (2, 8954110), (4, 4477055), (5, 3581644), (10, 1790822), (11, 1628020), (20, 895411), (22, 814010), (44, 407005), (55, 325604), (110, 162802), (220, 81401)]