20115172

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{65309}}^1$

素因数の和:65331

約数の個数: 24

約数和(自身を含む): 43888320

約数和(自身を除く): 23773148

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 65309, 130618, 261236, 457163, 718399, 914326, 1436798, 1828652, 2873596, 5028793, 10057586, 20115172]

約数ペア:

[(1, 20115172), (2, 10057586), (4, 5028793), (7, 2873596), (11, 1828652), (14, 1436798), (22, 914326), (28, 718399), (44, 457163), (77, 261236), (154, 130618), (308, 65309)]