21855258

素因数分解:

$2^1\times 3^4\times {\mathrm{134909}}^1$

素因数の和:134923

約数の個数: 20

約数和(自身を含む): 48972330

約数和(自身を除く): 27117072

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 134909, 269818, 404727, 809454, 1214181, 2428362, 3642543, 7285086, 10927629, 21855258]

約数ペア:

[(1, 21855258), (2, 10927629), (3, 7285086), (6, 3642543), (9, 2428362), (18, 1214181), (27, 809454), (54, 404727), (81, 269818), (162, 134909)]