18747608

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1307}}^1$

素因数の和:1487

約数の個数: 32

約数和(自身を含む): 38612160

約数和(自身を除く): 19864552

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 163, 326, 652, 1304, 1307, 1793, 2614, 3586, 5228, 7172, 10456, 14344, 14377, 28754, 57508, 115016, 213041, 426082, 852164, 1704328, 2343451, 4686902, 9373804, 18747608]

約数ペア:

[(1, 18747608), (2, 9373804), (4, 4686902), (8, 2343451), (11, 1704328), (22, 852164), (44, 426082), (88, 213041), (163, 115016), (326, 57508), (652, 28754), (1304, 14377), (1307, 14344), (1793, 10456), (2614, 7172), (3586, 5228)]