21026560

素因数分解:

$2^8\times 5^1\times {\mathrm{16427}}^1$

素因数の和:16448

約数の個数: 36

約数和(自身を含む): 50368248

約数和(自身を除く): 29341688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 16427, 32854, 65708, 82135, 131416, 164270, 262832, 328540, 525664, 657080, 1051328, 1314160, 2102656, 2628320, 4205312, 5256640, 10513280, 21026560]

約数ペア:

[(1, 21026560), (2, 10513280), (4, 5256640), (5, 4205312), (8, 2628320), (10, 2102656), (16, 1314160), (20, 1051328), (32, 657080), (40, 525664), (64, 328540), (80, 262832), (128, 164270), (160, 131416), (256, 82135), (320, 65708), (640, 32854), (1280, 16427)]