20992872

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^2\times {\mathrm{2423}}^1$

素因数の和:2470

約数の個数: 48

約数和(自身を含む): 55412640

約数和(自身を除く): 34419768

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 361, 456, 722, 1083, 1444, 2166, 2423, 2888, 4332, 4846, 7269, 8664, 9692, 14538, 19384, 29076, 46037, 58152, 92074, 138111, 184148, 276222, 368296, 552444, 874703, 1104888, 1749406, 2624109, 3498812, 5248218, 6997624, 10496436, 20992872]

約数ペア:

[(1, 20992872), (2, 10496436), (3, 6997624), (4, 5248218), (6, 3498812), (8, 2624109), (12, 1749406), (19, 1104888), (24, 874703), (38, 552444), (57, 368296), (76, 276222), (114, 184148), (152, 138111), (228, 92074), (361, 58152), (456, 46037), (722, 29076), (1083, 19384), (1444, 14538), (2166, 9692), (2423, 8664), (2888, 7269), (4332, 4846)]