21071178

素因数分解:

$2^1\times 3^4\times {\mathrm{130069}}^1$

素因数の和:130083

約数の個数: 20

約数和(自身を含む): 47215410

約数和(自身を除く): 26144232

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 130069, 260138, 390207, 780414, 1170621, 2341242, 3511863, 7023726, 10535589, 21071178]

約数ペア:

[(1, 21071178), (2, 10535589), (3, 7023726), (6, 3511863), (9, 2341242), (18, 1170621), (27, 780414), (54, 390207), (81, 260138), (162, 130069)]