21361256

素因数分解:

$2^3\times 7^2\times {\mathrm{54493}}^1$

素因数の和:54513

約数の個数: 24

約数和(自身を含む): 46592370

約数和(自身を除く): 25231114

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54493, 108986, 217972, 381451, 435944, 762902, 1525804, 2670157, 3051608, 5340314, 10680628, 21361256]

約数ペア:

[(1, 21361256), (2, 10680628), (4, 5340314), (7, 3051608), (8, 2670157), (14, 1525804), (28, 762902), (49, 435944), (56, 381451), (98, 217972), (196, 108986), (392, 54493)]