18728668

素因数分解:

$2^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{2137}}^1$

素因数の和:2461

約数の個数: 24

約数和(自身を含む): 37594592

約数和(自身を除く): 18865924

約数列:

[1, 2, 4, 7, 14, 28, 313, 626, 1252, 2137, 2191, 4274, 4382, 8548, 8764, 14959, 29918, 59836, 668881, 1337762, 2675524, 4682167, 9364334, 18728668]

約数ペア:

[(1, 18728668), (2, 9364334), (4, 4682167), (7, 2675524), (14, 1337762), (28, 668881), (313, 59836), (626, 29918), (1252, 14959), (2137, 8764), (2191, 8548), (4274, 4382)]