28205463

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 45879680

約数和(自身を除く): 17674217

約数列:

[1, 3, 11, 13, 33, 39, 43, 121, 129, 139, 143, 363, 417, 429, 473, 559, 1419, 1529, 1573, 1677, 1807, 4587, 4719, 5203, 5421, 5977, 6149, 15609, 16819, 17931, 18447, 19877, 50457, 59631, 65747, 67639, 77701, 197241, 202917, 218647, 233103, 655941, 723217, 854711, 2169651, 2564133, 9401821, 28205463]

約数ペア:

[(1, 28205463), (3, 9401821), (11, 2564133), (13, 2169651), (33, 854711), (39, 723217), (43, 655941), (121, 233103), (129, 218647), (139, 202917), (143, 197241), (363, 77701), (417, 67639), (429, 65747), (473, 59631), (559, 50457), (1419, 19877), (1529, 18447), (1573, 17931), (1677, 16819), (1807, 15609), (4587, 6149), (4719, 5977), (5203, 5421)]