20386856

素因数分解:

$2^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{4987}}^1$

素因数の和:5073

約数の個数: 32

約数和(自身を含む): 44293440

約数和(自身を除く): 23906584

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 73, 146, 292, 511, 584, 1022, 2044, 4088, 4987, 9974, 19948, 34909, 39896, 69818, 139636, 279272, 364051, 728102, 1456204, 2548357, 2912408, 5096714, 10193428, 20386856]

約数ペア:

[(1, 20386856), (2, 10193428), (4, 5096714), (7, 2912408), (8, 2548357), (14, 1456204), (28, 728102), (56, 364051), (73, 279272), (146, 139636), (292, 69818), (511, 39896), (584, 34909), (1022, 19948), (2044, 9974), (4088, 4987)]