18816783

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{463}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 28508160

約数和(自身を除く): 9691377

約数列:

[1, 3, 19, 23, 31, 57, 69, 93, 437, 463, 589, 713, 1311, 1389, 1767, 2139, 8797, 10649, 13547, 14353, 26391, 31947, 40641, 43059, 202331, 272707, 330119, 606993, 818121, 990357, 6272261, 18816783]

約数ペア:

[(1, 18816783), (3, 6272261), (19, 990357), (23, 818121), (31, 606993), (57, 330119), (69, 272707), (93, 202331), (437, 43059), (463, 40641), (589, 31947), (713, 26391), (1311, 14353), (1389, 13547), (1767, 10649), (2139, 8797)]