20686509

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{6229}}^1$

素因数の和:6282

約数の個数: 20

約数和(自身を含む): 31660860

約数和(自身を除く): 10974351

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 6229, 18687, 56061, 168183, 255389, 504549, 766167, 2298501, 6895503, 20686509]

約数ペア:

[(1, 20686509), (3, 6895503), (9, 2298501), (27, 766167), (41, 504549), (81, 255389), (123, 168183), (369, 56061), (1107, 18687), (3321, 6229)]