31384409

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 39936000

約数和(自身を除く): 8551591

約数列:

[1, 7, 19, 29, 79, 103, 133, 203, 551, 553, 721, 1501, 1957, 2291, 2987, 3857, 8137, 10507, 13699, 16037, 20909, 43529, 56753, 56959, 154603, 235973, 304703, 397271, 1082221, 1651811, 4483487, 31384409]

約数ペア:

[(1, 31384409), (7, 4483487), (19, 1651811), (29, 1082221), (79, 397271), (103, 304703), (133, 235973), (203, 154603), (551, 56959), (553, 56753), (721, 43529), (1501, 20909), (1957, 16037), (2291, 13699), (2987, 10507), (3857, 8137)]