291318378

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{86857}}^1$

素因数の和:86918

約数の個数: 32

約数和(自身を含む): 642054336

約数和(自身を除く): 350735958

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 78, 86, 129, 258, 559, 1118, 1677, 3354, 86857, 173714, 260571, 521142, 1129141, 2258282, 3387423, 3734851, 6774846, 7469702, 11204553, 22409106, 48553063, 97106126, 145659189, 291318378]

約数ペア:

[(1, 291318378), (2, 145659189), (3, 97106126), (6, 48553063), (13, 22409106), (26, 11204553), (39, 7469702), (43, 6774846), (78, 3734851), (86, 3387423), (129, 2258282), (258, 1129141), (559, 521142), (1118, 260571), (1677, 173714), (3354, 86857)]