20931729

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{76673}}^1$

素因数の和:76696

約数の個数: 16

約数和(自身を含む): 34349952

約数和(自身を除く): 13418223

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 76673, 230019, 536711, 996749, 1610133, 2990247, 6977243, 20931729]

約数ペア:

[(1, 20931729), (3, 6977243), (7, 2990247), (13, 1610133), (21, 996749), (39, 536711), (91, 230019), (273, 76673)]