21072320

素因数分解:

$2^6\times 5^1\times {\mathrm{65851}}^1$

素因数の和:65868

約数の個数: 28

約数和(自身を含む): 50179224

約数和(自身を除く): 29106904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65851, 131702, 263404, 329255, 526808, 658510, 1053616, 1317020, 2107232, 2634040, 4214464, 5268080, 10536160, 21072320]

約数ペア:

[(1, 21072320), (2, 10536160), (4, 5268080), (5, 4214464), (8, 2634040), (10, 2107232), (16, 1317020), (20, 1053616), (32, 658510), (40, 526808), (64, 329255), (80, 263404), (160, 131702), (320, 65851)]