18921172

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{1021}}^1$

素因数の和:1179

約数の個数: 24

約数和(自身を含む): 34253352

約数和(自身を除く): 15332180

約数列:

[1, 2, 4, 41, 82, 113, 164, 226, 452, 1021, 2042, 4084, 4633, 9266, 18532, 41861, 83722, 115373, 167444, 230746, 461492, 4730293, 9460586, 18921172]

約数ペア:

[(1, 18921172), (2, 9460586), (4, 4730293), (41, 461492), (82, 230746), (113, 167444), (164, 115373), (226, 83722), (452, 41861), (1021, 18532), (2042, 9266), (4084, 4633)]