256204263

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{717659}}^1$

素因数の和:717686

約数の個数: 16

約数和(自身を含む): 413372160

約数和(自身を除く): 157167897

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 717659, 2152977, 5023613, 12200203, 15070839, 36600609, 85401421, 256204263]

約数ペア:

[(1, 256204263), (3, 85401421), (7, 36600609), (17, 15070839), (21, 12200203), (51, 5023613), (119, 2152977), (357, 717659)]