21808976

素因数分解:

$2^4\times 7^1\times {\mathrm{194723}}^1$

素因数の和:194738

約数の個数: 20

約数和(自身を含む): 48291552

約数和(自身を除く): 26482576

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194723, 389446, 778892, 1363061, 1557784, 2726122, 3115568, 5452244, 10904488, 21808976]

約数ペア:

[(1, 21808976), (2, 10904488), (4, 5452244), (7, 3115568), (8, 2726122), (14, 1557784), (16, 1363061), (28, 778892), (56, 389446), (112, 194723)]