980019

素因数分解:

$3^5\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:161

約数の個数: 24

約数和(自身を含む): 1521520

約数和(自身を除く): 541501

約数列:

[1, 3, 9, 27, 37, 81, 109, 111, 243, 327, 333, 981, 999, 2943, 2997, 4033, 8829, 8991, 12099, 26487, 36297, 108891, 326673, 980019]

約数ペア:

[(1, 980019), (3, 326673), (9, 108891), (27, 36297), (37, 26487), (81, 12099), (109, 8991), (111, 8829), (243, 4033), (327, 2997), (333, 2943), (981, 999)]