20402379

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{55291}}^1$

素因数の和:55338

約数の個数: 12

約数和(自身を含む): 30189432

約数和(自身を除く): 9787053

約数列:

[1, 3, 9, 41, 123, 369, 55291, 165873, 497619, 2266931, 6800793, 20402379]

約数ペア:

[(1, 20402379), (3, 6800793), (9, 2266931), (41, 497619), (123, 165873), (369, 55291)]