217780426

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{199}}^1\times {\mathrm{4177}}^1$

素因数の和:4509

約数の個数: 16

約数和(自身を含む): 330897600

約数和(自身を除く): 113117174

約数列:

[1, 2, 131, 199, 262, 398, 4177, 8354, 26069, 52138, 547187, 831223, 1094374, 1662446, 108890213, 217780426]

約数ペア:

[(1, 217780426), (2, 108890213), (131, 1662446), (199, 1094374), (262, 831223), (398, 547187), (4177, 52138), (8354, 26069)]