18921254

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{1907}}^1$

素因数の和:1972

約数の個数: 24

約数和(自身を含む): 31974264

約数和(自身を除く): 13053010

約数列:

[1, 2, 11, 22, 41, 82, 121, 242, 451, 902, 1907, 3814, 4961, 9922, 20977, 41954, 78187, 156374, 230747, 461494, 860057, 1720114, 9460627, 18921254]

約数ペア:

[(1, 18921254), (2, 9460627), (11, 1720114), (22, 860057), (41, 461494), (82, 230747), (121, 156374), (242, 78187), (451, 41954), (902, 20977), (1907, 9922), (3814, 4961)]