21440745

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11621}}^1$

素因数の和:11673

約数の個数: 24

約数和(自身を含む): 38073672

約数和(自身を除く): 16632927

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 11621, 34863, 58105, 104589, 174315, 476461, 522945, 1429383, 2382305, 4288149, 7146915, 21440745]

約数ペア:

[(1, 21440745), (3, 7146915), (5, 4288149), (9, 2382305), (15, 1429383), (41, 522945), (45, 476461), (123, 174315), (205, 104589), (369, 58105), (615, 34863), (1845, 11621)]