21079509

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{1609}}^1$

素因数の和:2020

約数の個数: 16

約数和(自身を含む): 30757440

約数和(自身を除く): 9677931

約数列:

[1, 3, 11, 33, 397, 1191, 1609, 4367, 4827, 13101, 17699, 53097, 638773, 1916319, 7026503, 21079509]

約数ペア:

[(1, 21079509), (3, 7026503), (11, 1916319), (33, 638773), (397, 53097), (1191, 17699), (1609, 13101), (4367, 4827)]