18658526

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{1637}}^1$

素因数の和:1819

約数の個数: 16

約数和(自身を含む): 28894320

約数和(自身を除く): 10235794

約数列:

[1, 2, 41, 82, 139, 278, 1637, 3274, 5699, 11398, 67117, 134234, 227543, 455086, 9329263, 18658526]

約数ペア:

[(1, 18658526), (2, 9329263), (41, 455086), (82, 227543), (139, 134234), (278, 67117), (1637, 11398), (3274, 5699)]