21186906

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{1823}}^1$

素因数の和:1990

約数の個数: 32

約数和(自身を含む): 45964800

約数和(自身を除く): 24777894

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 149, 298, 447, 894, 1823, 1937, 3646, 3874, 5469, 5811, 10938, 11622, 23699, 47398, 71097, 142194, 271627, 543254, 814881, 1629762, 3531151, 7062302, 10593453, 21186906]

約数ペア:

[(1, 21186906), (2, 10593453), (3, 7062302), (6, 3531151), (13, 1629762), (26, 814881), (39, 543254), (78, 271627), (149, 142194), (298, 71097), (447, 47398), (894, 23699), (1823, 11622), (1937, 10938), (3646, 5811), (3874, 5469)]