20398862

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{4049}}^1$

素因数の和:4291

約数の個数: 16

約数和(自身を含む): 33534000

約数和(自身を除く): 13135138

約数列:

[1, 2, 11, 22, 229, 458, 2519, 4049, 5038, 8098, 44539, 89078, 927221, 1854442, 10199431, 20398862]

約数ペア:

[(1, 20398862), (2, 10199431), (11, 1854442), (22, 927221), (229, 89078), (458, 44539), (2519, 8098), (4049, 5038)]