21887138

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{499}}^1$

素因数の和:762

約数の個数: 32

約数和(自身を含む): 40656000

約数和(自身を除く): 18768862

約数列:

[1, 2, 7, 13, 14, 26, 91, 182, 241, 482, 499, 998, 1687, 3133, 3374, 3493, 6266, 6487, 6986, 12974, 21931, 43862, 45409, 90818, 120259, 240518, 841813, 1563367, 1683626, 3126734, 10943569, 21887138]

約数ペア:

[(1, 21887138), (2, 10943569), (7, 3126734), (13, 1683626), (14, 1563367), (26, 841813), (91, 240518), (182, 120259), (241, 90818), (482, 45409), (499, 43862), (998, 21931), (1687, 12974), (3133, 6986), (3374, 6487), (3493, 6266)]