20279859

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:575

約数の個数: 32

約数和(自身を含む): 30720000

約数和(自身を除く): 10440141

約数列:

[1, 3, 19, 23, 31, 57, 69, 93, 437, 499, 589, 713, 1311, 1497, 1767, 2139, 9481, 11477, 13547, 15469, 28443, 34431, 40641, 46407, 218063, 293911, 355787, 654189, 881733, 1067361, 6759953, 20279859]

約数ペア:

[(1, 20279859), (3, 6759953), (19, 1067361), (23, 881733), (31, 654189), (57, 355787), (69, 293911), (93, 218063), (437, 46407), (499, 40641), (589, 34431), (713, 28443), (1311, 15469), (1497, 13547), (1767, 11477), (2139, 9481)]