21482577

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{15601}}^1$

素因数の和:15630

約数の個数: 20

約数和(自身を含む): 33981156

約数和(自身を除く): 12498579

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 15601, 46803, 140409, 265217, 421227, 795651, 1263681, 2386953, 7160859, 21482577]

約数ペア:

[(1, 21482577), (3, 7160859), (9, 2386953), (17, 1263681), (27, 795651), (51, 421227), (81, 265217), (153, 140409), (459, 46803), (1377, 15601)]