20019906

素因数分解:

$2^1\times 3^3\times {\mathrm{173}}^1\times {\mathrm{2143}}^1$

素因数の和:2327

約数の個数: 32

約数和(自身を含む): 44766720

約数和(自身を除く): 24746814

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 173, 346, 519, 1038, 1557, 2143, 3114, 4286, 4671, 6429, 9342, 12858, 19287, 38574, 57861, 115722, 370739, 741478, 1112217, 2224434, 3336651, 6673302, 10009953, 20019906]

約数ペア:

[(1, 20019906), (2, 10009953), (3, 6673302), (6, 3336651), (9, 2224434), (18, 1112217), (27, 741478), (54, 370739), (173, 115722), (346, 57861), (519, 38574), (1038, 19287), (1557, 12858), (2143, 9342), (3114, 6429), (4286, 4671)]