215231891

素因数分解:

$7^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1\times {\mathrm{2543}}^1$

素因数の和:2770

約数の個数: 16

約数和(自身を含む): 250573824

約数和(自身を除く): 35341933

約数列:

[1, 7, 107, 113, 749, 791, 2543, 12091, 17801, 84637, 272101, 287359, 1904707, 2011513, 30747413, 215231891]

約数ペア:

[(1, 215231891), (7, 30747413), (107, 2011513), (113, 1904707), (749, 287359), (791, 272101), (2543, 84637), (12091, 17801)]