20685969

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{16301}}^1$

素因数の和:16357

約数の個数: 16

約数和(自身を含む): 31299840

約数和(自身を除く): 10613871

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 16301, 48903, 146709, 440127, 766147, 2298441, 6895323, 20685969]

約数ペア:

[(1, 20685969), (3, 6895323), (9, 2298441), (27, 766147), (47, 440127), (141, 146709), (423, 48903), (1269, 16301)]