20156668

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5179}}^1$

素因数の和:5329

約数の個数: 24

約数和(自身を含む): 40611200

約数和(自身を除く): 20454532

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5179, 10358, 20716, 36253, 72506, 145012, 719881, 1439762, 2879524, 5039167, 10078334, 20156668]

約数ペア:

[(1, 20156668), (2, 10078334), (4, 5039167), (7, 2879524), (14, 1439762), (28, 719881), (139, 145012), (278, 72506), (556, 36253), (973, 20716), (1946, 10358), (3892, 5179)]