20515796

素因数分解:

$2^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2851}}^1$

素因数の和:3119

約数の個数: 24

約数和(自身を含む): 41205696

約数和(自身を除く): 20689900

約数列:

[1, 2, 4, 7, 14, 28, 257, 514, 1028, 1799, 2851, 3598, 5702, 7196, 11404, 19957, 39914, 79828, 732707, 1465414, 2930828, 5128949, 10257898, 20515796]

約数ペア:

[(1, 20515796), (2, 10257898), (4, 5128949), (7, 2930828), (14, 1465414), (28, 732707), (257, 79828), (514, 39914), (1028, 19957), (1799, 11404), (2851, 7196), (3598, 5702)]