21228780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{353813}}^1$

素因数の和:353825

約数の個数: 24

約数和(自身を含む): 59440752

約数和(自身を除く): 38211972

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 353813, 707626, 1061439, 1415252, 1769065, 2122878, 3538130, 4245756, 5307195, 7076260, 10614390, 21228780]

約数ペア:

[(1, 21228780), (2, 10614390), (3, 7076260), (4, 5307195), (5, 4245756), (6, 3538130), (10, 2122878), (12, 1769065), (15, 1415252), (20, 1061439), (30, 707626), (60, 353813)]