21739556

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{881}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 39513600

約数和(自身を除く): 17774044

約数列:

[1, 2, 4, 31, 62, 124, 199, 398, 796, 881, 1762, 3524, 6169, 12338, 24676, 27311, 54622, 109244, 175319, 350638, 701276, 5434889, 10869778, 21739556]

約数ペア:

[(1, 21739556), (2, 10869778), (4, 5434889), (31, 701276), (62, 350638), (124, 175319), (199, 109244), (398, 54622), (796, 27311), (881, 24676), (1762, 12338), (3524, 6169)]