21493335

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{709}}^1$

素因数の和:807

約数の個数: 32

約数和(自身を含む): 35988480

約数和(自身を除く): 14495145

約数列:

[1, 3, 5, 15, 43, 47, 129, 141, 215, 235, 645, 705, 709, 2021, 2127, 3545, 6063, 10105, 10635, 30315, 30487, 33323, 91461, 99969, 152435, 166615, 457305, 499845, 1432889, 4298667, 7164445, 21493335]

約数ペア:

[(1, 21493335), (3, 7164445), (5, 4298667), (15, 1432889), (43, 499845), (47, 457305), (129, 166615), (141, 152435), (215, 99969), (235, 91461), (645, 33323), (705, 30487), (709, 30315), (2021, 10635), (2127, 10105), (3545, 6063)]