28449981

素因数分解:

$3^3\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1381}}^1$

素因数の和:1506

約数の個数: 32

約数和(自身を含む): 48646400

約数和(自身を除く): 20196419

約数列:

[1, 3, 7, 9, 21, 27, 63, 109, 189, 327, 763, 981, 1381, 2289, 2943, 4143, 6867, 9667, 12429, 20601, 29001, 37287, 87003, 150529, 261009, 451587, 1053703, 1354761, 3161109, 4064283, 9483327, 28449981]

約数ペア:

[(1, 28449981), (3, 9483327), (7, 4064283), (9, 3161109), (21, 1354761), (27, 1053703), (63, 451587), (109, 261009), (189, 150529), (327, 87003), (763, 37287), (981, 29001), (1381, 20601), (2289, 12429), (2943, 9667), (4143, 6867)]