20217010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{769}}^1$

素因数の和:1026

約数の個数: 32

約数和(自身を含む): 39916800

約数和(自身を除く): 19699790

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 239, 478, 769, 1195, 1538, 2390, 2629, 3845, 5258, 7690, 8459, 13145, 16918, 26290, 42295, 84590, 183791, 367582, 918955, 1837910, 2021701, 4043402, 10108505, 20217010]

約数ペア:

[(1, 20217010), (2, 10108505), (5, 4043402), (10, 2021701), (11, 1837910), (22, 918955), (55, 367582), (110, 183791), (239, 84590), (478, 42295), (769, 26290), (1195, 16918), (1538, 13145), (2390, 8459), (2629, 7690), (3845, 5258)]