21742149

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{859}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 34675200

約数和(自身を除く): 12933051

約数列:

[1, 3, 11, 13, 33, 39, 59, 143, 177, 429, 649, 767, 859, 1947, 2301, 2577, 8437, 9449, 11167, 25311, 28347, 33501, 50681, 122837, 152043, 368511, 557491, 658853, 1672473, 1976559, 7247383, 21742149]

約数ペア:

[(1, 21742149), (3, 7247383), (11, 1976559), (13, 1672473), (33, 658853), (39, 557491), (59, 368511), (143, 152043), (177, 122837), (429, 50681), (649, 33501), (767, 28347), (859, 25311), (1947, 11167), (2301, 9449), (2577, 8437)]