217284865

素因数分解:

$5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{12149}}^1$

素因数の和:12241

約数の個数: 24

約数和(自身を含む): 307492200

約数和(自身を除く): 90207335

約数列:

[1, 5, 7, 35, 49, 73, 245, 365, 511, 2555, 3577, 12149, 17885, 60745, 85043, 425215, 595301, 886877, 2976505, 4434385, 6208139, 31040695, 43456973, 217284865]

約数ペア:

[(1, 217284865), (5, 43456973), (7, 31040695), (35, 6208139), (49, 4434385), (73, 2976505), (245, 886877), (365, 595301), (511, 425215), (2555, 85043), (3577, 60745), (12149, 17885)]