20121543

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{751}}^1$

素因数の和:999

約数の個数: 24

約数和(自身を含む): 31478720

約数和(自身を除く): 11357177

約数列:

[1, 3, 9, 13, 39, 117, 229, 687, 751, 2061, 2253, 2977, 6759, 8931, 9763, 26793, 29289, 87867, 171979, 515937, 1547811, 2235727, 6707181, 20121543]

約数ペア:

[(1, 20121543), (3, 6707181), (9, 2235727), (13, 1547811), (39, 515937), (117, 171979), (229, 87867), (687, 29289), (751, 26793), (2061, 9763), (2253, 8931), (2977, 6759)]