20605172

素因数分解:

$2^2\times 7^1\times {\mathrm{677}}^1\times {\mathrm{1087}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 41309184

約数和(自身を除く): 20704012

約数列:

[1, 2, 4, 7, 14, 28, 677, 1087, 1354, 2174, 2708, 4348, 4739, 7609, 9478, 15218, 18956, 30436, 735899, 1471798, 2943596, 5151293, 10302586, 20605172]

約数ペア:

[(1, 20605172), (2, 10302586), (4, 5151293), (7, 2943596), (14, 1471798), (28, 735899), (677, 30436), (1087, 18956), (1354, 15218), (2174, 9478), (2708, 7609), (4348, 4739)]