21012534

素因数分解:

$2^1\times 3^4\times {\mathrm{129707}}^1$

素因数の和:129721

約数の個数: 20

約数和(自身を含む): 47084004

約数和(自身を除く): 26071470

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 129707, 259414, 389121, 778242, 1167363, 2334726, 3502089, 7004178, 10506267, 21012534]

約数ペア:

[(1, 21012534), (2, 10506267), (3, 7004178), (6, 3502089), (9, 2334726), (18, 1167363), (27, 778242), (54, 389121), (81, 259414), (162, 129707)]