20823403779

素因数分解:

$3^4\times {\mathrm{787}}^1\times {\mathrm{326657}}^1$

素因数の和:327456

約数の個数: 20

約数和(自身を含む): 31146186984

約数和(自身を除く): 10322783205

約数列:

[1, 3, 9, 27, 81, 787, 2361, 7083, 21249, 63747, 326657, 979971, 2939913, 8819739, 26459217, 257079059, 771237177, 2313711531, 6941134593, 20823403779]

約数ペア:

[(1, 20823403779), (3, 6941134593), (9, 2313711531), (27, 771237177), (81, 257079059), (787, 26459217), (2361, 8819739), (7083, 2939913), (21249, 979971), (63747, 326657)]