219312513

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1109}}^1$

素因数の和:1238

約数の個数: 48

約数和(自身を含む): 375872640

約数和(自身を除く): 156560127

約数列:

[1, 3, 7, 9, 21, 43, 63, 73, 129, 219, 301, 387, 511, 657, 903, 1109, 1533, 2709, 3139, 3327, 4599, 7763, 9417, 9981, 21973, 23289, 28251, 47687, 65919, 69867, 80957, 143061, 197757, 242871, 333809, 429183, 566699, 728613, 1001427, 1700097, 3004281, 3481151, 5100291, 10443453, 24368057, 31330359, 73104171, 219312513]

約数ペア:

[(1, 219312513), (3, 73104171), (7, 31330359), (9, 24368057), (21, 10443453), (43, 5100291), (63, 3481151), (73, 3004281), (129, 1700097), (219, 1001427), (301, 728613), (387, 566699), (511, 429183), (657, 333809), (903, 242871), (1109, 197757), (1533, 143061), (2709, 80957), (3139, 69867), (3327, 65919), (4599, 47687), (7763, 28251), (9417, 23289), (9981, 21973)]