20973232

素因数分解:

$2^4\times 7^1\times {\mathrm{271}}^1\times {\mathrm{691}}^1$

素因数の和:977

約数の個数: 40

約数和(自身を含む): 46679552

約数和(自身を除く): 25706320

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 271, 542, 691, 1084, 1382, 1897, 2168, 2764, 3794, 4336, 4837, 5528, 7588, 9674, 11056, 15176, 19348, 30352, 38696, 77392, 187261, 374522, 749044, 1310827, 1498088, 2621654, 2996176, 5243308, 10486616, 20973232]

約数ペア:

[(1, 20973232), (2, 10486616), (4, 5243308), (7, 2996176), (8, 2621654), (14, 1498088), (16, 1310827), (28, 749044), (56, 374522), (112, 187261), (271, 77392), (542, 38696), (691, 30352), (1084, 19348), (1382, 15176), (1897, 11056), (2168, 9674), (2764, 7588), (3794, 5528), (4336, 4837)]