20091492

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{12979}}^1$

素因数の和:13032

約数の個数: 36

約数和(自身を含む): 51971920

約数和(自身を除く): 31880428

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 12979, 25958, 38937, 51916, 77874, 116811, 155748, 233622, 467244, 558097, 1116194, 1674291, 2232388, 3348582, 5022873, 6697164, 10045746, 20091492]

約数ペア:

[(1, 20091492), (2, 10045746), (3, 6697164), (4, 5022873), (6, 3348582), (9, 2232388), (12, 1674291), (18, 1116194), (36, 558097), (43, 467244), (86, 233622), (129, 155748), (172, 116811), (258, 77874), (387, 51916), (516, 38937), (774, 25958), (1548, 12979)]