21278130

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{709271}}^1$

素因数の和:709281

約数の個数: 16

約数和(自身を含む): 51067584

約数和(自身を除く): 29789454

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 709271, 1418542, 2127813, 3546355, 4255626, 7092710, 10639065, 21278130]

約数ペア:

[(1, 21278130), (2, 10639065), (3, 7092710), (5, 4255626), (6, 3546355), (10, 2127813), (15, 1418542), (30, 709271)]