20351487

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{137}}^1\times {\mathrm{293}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 29698704

約数和(自身を除く): 9347217

約数列:

[1, 3, 13, 39, 137, 169, 293, 411, 507, 879, 1781, 3809, 5343, 11427, 23153, 40141, 49517, 69459, 120423, 148551, 521833, 1565499, 6783829, 20351487]

約数ペア:

[(1, 20351487), (3, 6783829), (13, 1565499), (39, 521833), (137, 148551), (169, 120423), (293, 69459), (411, 49517), (507, 40141), (879, 23153), (1781, 11427), (3809, 5343)]