21377220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{356287}}^1$

素因数の和:356299

約数の個数: 24

約数和(自身を含む): 59856384

約数和(自身を除く): 38479164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 356287, 712574, 1068861, 1425148, 1781435, 2137722, 3562870, 4275444, 5344305, 7125740, 10688610, 21377220]

約数ペア:

[(1, 21377220), (2, 10688610), (3, 7125740), (4, 5344305), (5, 4275444), (6, 3562870), (10, 2137722), (12, 1781435), (15, 1425148), (20, 1068861), (30, 712574), (60, 356287)]