20012961

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{563}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 29088864

約数和(自身を除く): 9075903

約数列:

[1, 3, 17, 41, 51, 123, 289, 563, 697, 867, 1689, 2091, 9571, 11849, 23083, 28713, 35547, 69249, 162707, 392411, 488121, 1177233, 6670987, 20012961]

約数ペア:

[(1, 20012961), (3, 6670987), (17, 1177233), (41, 488121), (51, 392411), (123, 162707), (289, 69249), (563, 35547), (697, 28713), (867, 23083), (1689, 11849), (2091, 9571)]