21257127

素因数分解:

$3^3\times {\mathrm{419}}^1\times {\mathrm{1879}}^1$

素因数の和:2307

約数の個数: 16

約数和(自身を含む): 31584000

約数和(自身を除く): 10326873

約数列:

[1, 3, 9, 27, 419, 1257, 1879, 3771, 5637, 11313, 16911, 50733, 787301, 2361903, 7085709, 21257127]

約数ペア:

[(1, 21257127), (3, 7085709), (9, 2361903), (27, 787301), (419, 50733), (1257, 16911), (1879, 11313), (3771, 5637)]