18640528

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{11311}}^1$

素因数の和:11422

約数の個数: 20

約数和(自身を含む): 36469888

約数和(自身を除く): 17829360

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 11311, 22622, 45244, 90488, 180976, 1165033, 2330066, 4660132, 9320264, 18640528]

約数ペア:

[(1, 18640528), (2, 9320264), (4, 4660132), (8, 2330066), (16, 1165033), (103, 180976), (206, 90488), (412, 45244), (824, 22622), (1648, 11311)]