21204153

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{9941}}^1$

素因数の和:10029

約数の個数: 16

約数和(自身を含む): 31814400

約数和(自身を除く): 10610247

約数列:

[1, 3, 9, 27, 79, 237, 711, 2133, 9941, 29823, 89469, 268407, 785339, 2356017, 7068051, 21204153]

約数ペア:

[(1, 21204153), (3, 7068051), (9, 2356017), (27, 785339), (79, 268407), (237, 89469), (711, 29823), (2133, 9941)]