31448487

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{643}}^1$

素因数の和:807

約数の個数: 32

約数和(自身を含む): 51190272

約数和(自身を除く): 19741785

約数列:

[1, 3, 7, 17, 21, 51, 119, 137, 357, 411, 643, 959, 1929, 2329, 2877, 4501, 6987, 10931, 13503, 16303, 32793, 48909, 76517, 88091, 229551, 264273, 616637, 1497547, 1849911, 4492641, 10482829, 31448487]

約数ペア:

[(1, 31448487), (3, 10482829), (7, 4492641), (17, 1849911), (21, 1497547), (51, 616637), (119, 264273), (137, 229551), (357, 88091), (411, 76517), (643, 48909), (959, 32793), (1929, 16303), (2329, 13503), (2877, 10931), (4501, 6987)]