21161928705

素因数分解:

$3^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3626723}}^1$

素因数の和:3627120

約数の個数: 16

約数和(自身を含む): 33946136640

約数和(自身を除く): 12784207935

約数列:

[1, 3, 5, 15, 389, 1167, 1945, 5835, 3626723, 10880169, 18133615, 54400845, 1410795247, 4232385741, 7053976235, 21161928705]

約数ペア:

[(1, 21161928705), (3, 7053976235), (5, 4232385741), (15, 1410795247), (389, 54400845), (1167, 18133615), (1945, 10880169), (5835, 3626723)]