21026240

素因数分解:

$2^6\times 5^1\times {\mathrm{65707}}^1$

素因数の和:65724

約数の個数: 28

約数和(自身を含む): 50069496

約数和(自身を除く): 29043256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65707, 131414, 262828, 328535, 525656, 657070, 1051312, 1314140, 2102624, 2628280, 4205248, 5256560, 10513120, 21026240]

約数ペア:

[(1, 21026240), (2, 10513120), (4, 5256560), (5, 4205248), (8, 2628280), (10, 2102624), (16, 1314140), (20, 1051312), (32, 657070), (40, 525656), (64, 328535), (80, 262828), (160, 131414), (320, 65707)]