21549808

素因数分解:

$2^4\times 7^2\times {\mathrm{27487}}^1$

素因数の和:27509

約数の個数: 30

約数和(自身を含む): 48571296

約数和(自身を除く): 27021488

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 27487, 54974, 109948, 192409, 219896, 384818, 439792, 769636, 1346863, 1539272, 2693726, 3078544, 5387452, 10774904, 21549808]

約数ペア:

[(1, 21549808), (2, 10774904), (4, 5387452), (7, 3078544), (8, 2693726), (14, 1539272), (16, 1346863), (28, 769636), (49, 439792), (56, 384818), (98, 219896), (112, 192409), (196, 109948), (392, 54974), (784, 27487)]