20706729

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{4201}}^1$

素因数の和:4288

約数の個数: 16

約数和(自身を含む): 29044224

約数和(自身を除く): 8337495

約数列:

[1, 3, 31, 53, 93, 159, 1643, 4201, 4929, 12603, 130231, 222653, 390693, 667959, 6902243, 20706729]

約数ペア:

[(1, 20706729), (3, 6902243), (31, 667959), (53, 390693), (93, 222653), (159, 130231), (1643, 12603), (4201, 4929)]