21551768

素因数分解:

$2^3\times 7^2\times {\mathrm{54979}}^1$

素因数の和:54999

約数の個数: 24

約数和(自身を含む): 47007900

約数和(自身を除く): 25456132

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54979, 109958, 219916, 384853, 439832, 769706, 1539412, 2693971, 3078824, 5387942, 10775884, 21551768]

約数ペア:

[(1, 21551768), (2, 10775884), (4, 5387942), (7, 3078824), (8, 2693971), (14, 1539412), (28, 769706), (49, 439832), (56, 384853), (98, 219916), (196, 109958), (392, 54979)]