21458204

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1709}}^1$

素因数の和:1829

約数の個数: 24

約数和(自身を含む): 38974320

約数和(自身を除く): 17516116

約数列:

[1, 2, 4, 43, 73, 86, 146, 172, 292, 1709, 3139, 3418, 6278, 6836, 12556, 73487, 124757, 146974, 249514, 293948, 499028, 5364551, 10729102, 21458204]

約数ペア:

[(1, 21458204), (2, 10729102), (4, 5364551), (43, 499028), (73, 293948), (86, 249514), (146, 146974), (172, 124757), (292, 73487), (1709, 12556), (3139, 6836), (3418, 6278)]