8178303

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 13312000

約数和(自身を除く): 5133697

約数列:

[1, 3, 7, 19, 21, 57, 103, 133, 199, 309, 399, 597, 721, 1393, 1957, 2163, 3781, 4179, 5871, 11343, 13699, 20497, 26467, 41097, 61491, 79401, 143479, 389443, 430437, 1168329, 2726101, 8178303]

約数ペア:

[(1, 8178303), (3, 2726101), (7, 1168329), (19, 430437), (21, 389443), (57, 143479), (103, 79401), (133, 61491), (199, 41097), (309, 26467), (399, 20497), (597, 13699), (721, 11343), (1393, 5871), (1957, 4179), (2163, 3781)]