20938390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{11197}}^1$

素因数の和:11232

約数の個数: 32

約数和(自身を含む): 43537824

約数和(自身を除く): 22599434

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 11197, 22394, 55985, 111970, 123167, 190349, 246334, 380698, 615835, 951745, 1231670, 1903490, 2093839, 4187678, 10469195, 20938390]

約数ペア:

[(1, 20938390), (2, 10469195), (5, 4187678), (10, 2093839), (11, 1903490), (17, 1231670), (22, 951745), (34, 615835), (55, 380698), (85, 246334), (110, 190349), (170, 123167), (187, 111970), (374, 55985), (935, 22394), (1870, 11197)]