31291841

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 36

約数和(自身を含む): 40393620

約数和(自身を除く): 9101779

約数列:

[1, 7, 19, 29, 49, 61, 133, 203, 361, 427, 551, 931, 1159, 1421, 1769, 2527, 2989, 3857, 8113, 10469, 12383, 17689, 22021, 26999, 33611, 56791, 73283, 86681, 154147, 235277, 512981, 638609, 1079029, 1646939, 4470263, 31291841]

約数ペア:

[(1, 31291841), (7, 4470263), (19, 1646939), (29, 1079029), (49, 638609), (61, 512981), (133, 235277), (203, 154147), (361, 86681), (427, 73283), (551, 56791), (931, 33611), (1159, 26999), (1421, 22021), (1769, 17689), (2527, 12383), (2989, 10469), (3857, 8113)]