28479681

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{15287}}^1$

素因数の和:15322

約数の個数: 20

約数和(自身を含む): 44396352

約数和(自身を除く): 15916671

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 15287, 45861, 137583, 351601, 412749, 1054803, 1238247, 3164409, 9493227, 28479681]

約数ペア:

[(1, 28479681), (3, 9493227), (9, 3164409), (23, 1238247), (27, 1054803), (69, 412749), (81, 351601), (207, 137583), (621, 45861), (1863, 15287)]