21309966

素因数分解:

$2^1\times 3^4\times {\mathrm{131543}}^1$

素因数の和:131557

約数の個数: 20

約数和(自身を含む): 47750472

約数和(自身を除く): 26440506

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 131543, 263086, 394629, 789258, 1183887, 2367774, 3551661, 7103322, 10654983, 21309966]

約数ペア:

[(1, 21309966), (2, 10654983), (3, 7103322), (6, 3551661), (9, 2367774), (18, 1183887), (27, 789258), (54, 394629), (81, 263086), (162, 131543)]