21511842

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{821}}^1$

素因数の和:1234

約数の個数: 32

約数和(自身を含む): 47110464

約数和(自身を除く): 25598622

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 397, 794, 821, 1191, 1642, 2382, 2463, 4367, 4926, 8734, 9031, 13101, 18062, 26202, 27093, 54186, 325937, 651874, 977811, 1955622, 3585307, 7170614, 10755921, 21511842]

約数ペア:

[(1, 21511842), (2, 10755921), (3, 7170614), (6, 3585307), (11, 1955622), (22, 977811), (33, 651874), (66, 325937), (397, 54186), (794, 27093), (821, 26202), (1191, 18062), (1642, 13101), (2382, 9031), (2463, 8734), (4367, 4926)]