21033280

素因数分解:

$2^6\times 5^1\times {\mathrm{65729}}^1$

素因数の和:65746

約数の個数: 28

約数和(自身を含む): 50086260

約数和(自身を除く): 29052980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65729, 131458, 262916, 328645, 525832, 657290, 1051664, 1314580, 2103328, 2629160, 4206656, 5258320, 10516640, 21033280]

約数ペア:

[(1, 21033280), (2, 10516640), (4, 5258320), (5, 4206656), (8, 2629160), (10, 2103328), (16, 1314580), (20, 1051664), (32, 657290), (40, 525832), (64, 328645), (80, 262916), (160, 131458), (320, 65729)]