18345778

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{43}}^2$

素因数の和:151

約数の個数: 36

約数和(自身を含む): 31722894

約数和(自身を除く): 13377116

約数列:

[1, 2, 11, 22, 41, 43, 82, 86, 121, 242, 451, 473, 902, 946, 1763, 1849, 3526, 3698, 4961, 5203, 9922, 10406, 19393, 20339, 38786, 40678, 75809, 151618, 213323, 223729, 426646, 447458, 833899, 1667798, 9172889, 18345778]

約数ペア:

[(1, 18345778), (2, 9172889), (11, 1667798), (22, 833899), (41, 447458), (43, 426646), (82, 223729), (86, 213323), (121, 151618), (242, 75809), (451, 40678), (473, 38786), (902, 20339), (946, 19393), (1763, 10406), (1849, 9922), (3526, 5203), (3698, 4961)]