99991661

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1667}}^1$

素因数の和:1745

約数の個数: 32

約数和(自身を含む): 134507520

約数和(自身を除く): 34515859

約数列:

[1, 7, 11, 19, 41, 77, 133, 209, 287, 451, 779, 1463, 1667, 3157, 5453, 8569, 11669, 18337, 31673, 59983, 68347, 128359, 221711, 348403, 478429, 751817, 1298593, 2438821, 5262719, 9090151, 14284523, 99991661]

約数ペア:

[(1, 99991661), (7, 14284523), (11, 9090151), (19, 5262719), (41, 2438821), (77, 1298593), (133, 751817), (209, 478429), (287, 348403), (451, 221711), (779, 128359), (1463, 68347), (1667, 59983), (3157, 31673), (5453, 18337), (8569, 11669)]