56661591

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{20287}}^1$

素因数の和:20323

約数の個数: 24

約数和(自身を含む): 92513280

約数和(自身を除く): 35851689

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 20287, 60861, 142009, 385453, 426027, 994063, 1156359, 2698171, 2982189, 8094513, 18887197, 56661591]

約数ペア:

[(1, 56661591), (3, 18887197), (7, 8094513), (19, 2982189), (21, 2698171), (49, 1156359), (57, 994063), (133, 426027), (147, 385453), (399, 142009), (931, 60861), (2793, 20287)]