21077220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{351287}}^1$

素因数の和:351299

約数の個数: 24

約数和(自身を含む): 59016384

約数和(自身を除く): 37939164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 351287, 702574, 1053861, 1405148, 1756435, 2107722, 3512870, 4215444, 5269305, 7025740, 10538610, 21077220]

約数ペア:

[(1, 21077220), (2, 10538610), (3, 7025740), (4, 5269305), (5, 4215444), (6, 3512870), (10, 2107722), (12, 1756435), (15, 1405148), (20, 1053861), (30, 702574), (60, 351287)]