21976581

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{4861}}^1$

素因数の和:5012

約数の個数: 16

約数和(自身を含む): 32205888

約数和(自身を除く): 10229307

約数列:

[1, 3, 11, 33, 137, 411, 1507, 4521, 4861, 14583, 53471, 160413, 665957, 1997871, 7325527, 21976581]

約数ペア:

[(1, 21976581), (3, 7325527), (11, 1997871), (33, 665957), (137, 160413), (411, 53471), (1507, 14583), (4521, 4861)]