21804496

素因数分解:

$2^4\times 7^1\times {\mathrm{194683}}^1$

素因数の和:194698

約数の個数: 20

約数和(自身を含む): 48281632

約数和(自身を除く): 26477136

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194683, 389366, 778732, 1362781, 1557464, 2725562, 3114928, 5451124, 10902248, 21804496]

約数ペア:

[(1, 21804496), (2, 10902248), (4, 5451124), (7, 3114928), (8, 2725562), (14, 1557464), (16, 1362781), (28, 778732), (56, 389366), (112, 194683)]