21286827

素因数分解:

$3^3\times {\mathrm{113}}^1\times {\mathrm{6977}}^1$

素因数の和:7099

約数の個数: 16

約数和(自身を含む): 31819680

約数和(自身を除く): 10532853

約数列:

[1, 3, 9, 27, 113, 339, 1017, 3051, 6977, 20931, 62793, 188379, 788401, 2365203, 7095609, 21286827]

約数ペア:

[(1, 21286827), (3, 7095609), (9, 2365203), (27, 788401), (113, 188379), (339, 62793), (1017, 20931), (3051, 6977)]