20921457590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{6469}}^1\times {\mathrm{29401}}^1$

素因数の和:35888

約数の個数: 32

約数和(自身を含む): 41089883040

約数和(自身を除く): 20168425450

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 6469, 12938, 29401, 32345, 58802, 64690, 71159, 142318, 147005, 294010, 323411, 355795, 646822, 711590, 1617055, 3234110, 190195069, 380390138, 950975345, 1901950690, 2092145759, 4184291518, 10460728795, 20921457590]

約数ペア:

[(1, 20921457590), (2, 10460728795), (5, 4184291518), (10, 2092145759), (11, 1901950690), (22, 950975345), (55, 380390138), (110, 190195069), (6469, 3234110), (12938, 1617055), (29401, 711590), (32345, 646822), (58802, 355795), (64690, 323411), (71159, 294010), (142318, 147005)]