20379357

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10939}}^1$

素因数の和:10974

約数の個数: 20

約数和(自身を含む): 31769760

約数和(自身を除く): 11390403

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10939, 32817, 98451, 251597, 295353, 754791, 886059, 2264373, 6793119, 20379357]

約数ペア:

[(1, 20379357), (3, 6793119), (9, 2264373), (23, 886059), (27, 754791), (69, 295353), (81, 251597), (207, 98451), (621, 32817), (1863, 10939)]