21128823

素因数分解:

$3^3\times {\mathrm{859}}^1\times {\mathrm{911}}^1$

素因数の和:1779

約数の個数: 16

約数和(自身を含む): 31372800

約数和(自身を除く): 10243977

約数列:

[1, 3, 9, 27, 859, 911, 2577, 2733, 7731, 8199, 23193, 24597, 782549, 2347647, 7042941, 21128823]

約数ペア:

[(1, 21128823), (3, 7042941), (9, 2347647), (27, 782549), (859, 24597), (911, 23193), (2577, 8199), (2733, 7731)]