205252551

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{45887}}^1$

素因数の和:45971

約数の個数: 24

約数和(自身を含む): 343609344

約数和(自身を除く): 138356793

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 45887, 137661, 321209, 412983, 963627, 2890881, 3257977, 9773931, 22805839, 29321793, 68417517, 205252551]

約数ペア:

[(1, 205252551), (3, 68417517), (7, 29321793), (9, 22805839), (21, 9773931), (63, 3257977), (71, 2890881), (213, 963627), (497, 412983), (639, 321209), (1491, 137661), (4473, 45887)]