20512697715

素因数分解:

$3^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1475203}}^1$

素因数の和:1475320

約数の個数: 32

約数和(自身を含む): 36821091840

約数和(自身を除く): 16308394125

約数列:

[1, 3, 5, 9, 15, 27, 45, 103, 135, 309, 515, 927, 1545, 2781, 4635, 13905, 1475203, 4425609, 7376015, 13276827, 22128045, 39830481, 66384135, 151945909, 199152405, 455837727, 759729545, 1367513181, 2279188635, 4102539543, 6837565905, 20512697715]

約数ペア:

[(1, 20512697715), (3, 6837565905), (5, 4102539543), (9, 2279188635), (15, 1367513181), (27, 759729545), (45, 455837727), (103, 199152405), (135, 151945909), (309, 66384135), (515, 39830481), (927, 22128045), (1545, 13276827), (2781, 7376015), (4635, 4425609), (13905, 1475203)]