21006156954

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{81419213}}^1$

素因数の和:81419261

約数の個数: 16

約数和(自身を含む): 42989344992

約数和(自身を除く): 21983188038

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 81419213, 162838426, 244257639, 488515278, 3501026159, 7002052318, 10503078477, 21006156954]

約数ペア:

[(1, 21006156954), (2, 10503078477), (3, 7002052318), (6, 3501026159), (43, 488515278), (86, 244257639), (129, 162838426), (258, 81419213)]