20105787519

素因数分解:

$3^4\times {\mathrm{181}}^1\times {\mathrm{659}}^1\times {\mathrm{2081}}^1$

素因数の和:2933

約数の個数: 40

約数和(自身を含む): 30260870640

約数和(自身を除く): 10155083121

約数列:

[1, 3, 9, 27, 81, 181, 543, 659, 1629, 1977, 2081, 4887, 5931, 6243, 14661, 17793, 18729, 53379, 56187, 119279, 168561, 357837, 376661, 1073511, 1129983, 1371379, 3220533, 3389949, 4114137, 9661599, 10169847, 12342411, 30509541, 37027233, 111081699, 248219599, 744658797, 2233976391, 6701929173, 20105787519]

約数ペア:

[(1, 20105787519), (3, 6701929173), (9, 2233976391), (27, 744658797), (81, 248219599), (181, 111081699), (543, 37027233), (659, 30509541), (1629, 12342411), (1977, 10169847), (2081, 9661599), (4887, 4114137), (5931, 3389949), (6243, 3220533), (14661, 1371379), (17793, 1129983), (18729, 1073511), (53379, 376661), (56187, 357837), (119279, 168561)]