164421981

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{47207}}^1$

素因数の和:47262

約数の個数: 20

約数和(自身を含む): 251335392

約数和(自身を除く): 86913411

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 47207, 141621, 424863, 1274589, 2029901, 3823767, 6089703, 18269109, 54807327, 164421981]

約数ペア:

[(1, 164421981), (3, 54807327), (9, 18269109), (27, 6089703), (43, 3823767), (81, 2029901), (129, 1274589), (387, 424863), (1161, 141621), (3483, 47207)]