21755679

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{821}}^1$

素因数の和:919

約数の個数: 24

約数和(自身を含む): 32360496

約数和(自身を除く): 10604817

約数列:

[1, 3, 11, 33, 73, 121, 219, 363, 803, 821, 2409, 2463, 8833, 9031, 26499, 27093, 59933, 99341, 179799, 298023, 659263, 1977789, 7251893, 21755679]

約数ペア:

[(1, 21755679), (3, 7251893), (11, 1977789), (33, 659263), (73, 298023), (121, 179799), (219, 99341), (363, 59933), (803, 27093), (821, 26499), (2409, 9031), (2463, 8833)]