20651015

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53639}}^1$

素因数の和:53662

約数の個数: 16

約数和(自身を含む): 30896640

約数和(自身を除く): 10245625

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 53639, 268195, 375473, 590029, 1877365, 2950145, 4130203, 20651015]

約数ペア:

[(1, 20651015), (5, 4130203), (7, 2950145), (11, 1877365), (35, 590029), (55, 375473), (77, 268195), (385, 53639)]