21947992

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{563}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 45074880

約数和(自身を除く): 23126888

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 443, 563, 886, 1126, 1772, 2252, 3544, 4504, 4873, 6193, 9746, 12386, 19492, 24772, 38984, 49544, 249409, 498818, 997636, 1995272, 2743499, 5486998, 10973996, 21947992]

約数ペア:

[(1, 21947992), (2, 10973996), (4, 5486998), (8, 2743499), (11, 1995272), (22, 997636), (44, 498818), (88, 249409), (443, 49544), (563, 38984), (886, 24772), (1126, 19492), (1772, 12386), (2252, 9746), (3544, 6193), (4504, 4873)]