21504010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10289}}^1$

素因数の和:10326

約数の個数: 32

約数和(自身を含む): 44452800

約数和(自身を除く): 22948790

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10289, 20578, 51445, 102890, 113179, 195491, 226358, 390982, 565895, 977455, 1131790, 1954910, 2150401, 4300802, 10752005, 21504010]

約数ペア:

[(1, 21504010), (2, 10752005), (5, 4300802), (10, 2150401), (11, 1954910), (19, 1131790), (22, 977455), (38, 565895), (55, 390982), (95, 226358), (110, 195491), (190, 113179), (209, 102890), (418, 51445), (1045, 20578), (2090, 10289)]