19885145

素因数分解:

$5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{4337}}^1$

素因数の和:4480

約数の個数: 16

約数和(自身を含む): 27485568

約数和(自身を除く): 7600423

約数列:

[1, 5, 7, 35, 131, 655, 917, 4337, 4585, 21685, 30359, 151795, 568147, 2840735, 3977029, 19885145]

約数ペア:

[(1, 19885145), (5, 3977029), (7, 2840735), (35, 568147), (131, 151795), (655, 30359), (917, 21685), (4337, 4585)]