221424957

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{4391}}^1$

素因数の和:4841

約数の個数: 24

約数和(自身を含む): 345316608

約数和(自身を除く): 123891651

約数列:

[1, 3, 9, 13, 39, 117, 431, 1293, 3879, 4391, 5603, 13173, 16809, 39519, 50427, 57083, 171249, 513747, 1892521, 5677563, 17032689, 24602773, 73808319, 221424957]

約数ペア:

[(1, 221424957), (3, 73808319), (9, 24602773), (13, 17032689), (39, 5677563), (117, 1892521), (431, 513747), (1293, 171249), (3879, 57083), (4391, 50427), (5603, 39519), (13173, 16809)]