21144315

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34381}}^1$

素因数の和:34430

約数の個数: 16

約数和(自身を含む): 34657056

約数和(自身を除く): 13512741

約数列:

[1, 3, 5, 15, 41, 123, 205, 615, 34381, 103143, 171905, 515715, 1409621, 4228863, 7048105, 21144315]

約数ペア:

[(1, 21144315), (3, 7048105), (5, 4228863), (15, 1409621), (41, 515715), (123, 171905), (205, 103143), (615, 34381)]