21374864

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1373}}^1$

素因数の和:1527

約数の個数: 40

約数和(自身を含む): 47705280

約数和(自身を除く): 26330416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1373, 1946, 2224, 2746, 3892, 5492, 7784, 9611, 10984, 15568, 19222, 21968, 38444, 76888, 153776, 190847, 381694, 763388, 1335929, 1526776, 2671858, 3053552, 5343716, 10687432, 21374864]

約数ペア:

[(1, 21374864), (2, 10687432), (4, 5343716), (7, 3053552), (8, 2671858), (14, 1526776), (16, 1335929), (28, 763388), (56, 381694), (112, 190847), (139, 153776), (278, 76888), (556, 38444), (973, 21968), (1112, 19222), (1373, 15568), (1946, 10984), (2224, 9611), (2746, 7784), (3892, 5492)]