31887681

素因数分解:

$3^1\times 7^4\times {\mathrm{19}}^1\times {\mathrm{233}}^1$

素因数の和:283

約数の個数: 40

約数和(自身を含む): 52434720

約数和(自身を除く): 20547039

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 233, 343, 399, 699, 931, 1029, 1631, 2401, 2793, 4427, 4893, 6517, 7203, 11417, 13281, 19551, 30989, 34251, 45619, 79919, 92967, 136857, 216923, 239757, 559433, 650769, 1518461, 1678299, 4555383, 10629227, 31887681]

約数ペア:

[(1, 31887681), (3, 10629227), (7, 4555383), (19, 1678299), (21, 1518461), (49, 650769), (57, 559433), (133, 239757), (147, 216923), (233, 136857), (343, 92967), (399, 79919), (699, 45619), (931, 34251), (1029, 30989), (1631, 19551), (2401, 13281), (2793, 11417), (4427, 7203), (4893, 6517)]