20774439

素因数分解:

$3^2\times 7^1\times {\mathrm{419}}^1\times {\mathrm{787}}^1$

素因数の和:1219

約数の個数: 24

約数和(自身を含む): 34419840

約数和(自身を除く): 13645401

約数列:

[1, 3, 7, 9, 21, 63, 419, 787, 1257, 2361, 2933, 3771, 5509, 7083, 8799, 16527, 26397, 49581, 329753, 989259, 2308271, 2967777, 6924813, 20774439]

約数ペア:

[(1, 20774439), (3, 6924813), (7, 2967777), (9, 2308271), (21, 989259), (63, 329753), (419, 49581), (787, 26397), (1257, 16527), (2361, 8799), (2933, 7083), (3771, 5509)]