20912086

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:328

約数の個数: 32

約数和(自身を含む): 35038080

約数和(自身を除く): 14125994

約数列:

[1, 2, 13, 26, 47, 94, 109, 157, 218, 314, 611, 1222, 1417, 2041, 2834, 4082, 5123, 7379, 10246, 14758, 17113, 34226, 66599, 95927, 133198, 191854, 222469, 444938, 804311, 1608622, 10456043, 20912086]

約数ペア:

[(1, 20912086), (2, 10456043), (13, 1608622), (26, 804311), (47, 444938), (94, 222469), (109, 191854), (157, 133198), (218, 95927), (314, 66599), (611, 34226), (1222, 17113), (1417, 14758), (2041, 10246), (2834, 7379), (4082, 5123)]