21000979310

素因数分解:

$2^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1663}}^1\times {\mathrm{6977}}^1$

素因数の和:8828

約数の個数: 32

約数和(自身を含む): 38038920192

約数和(自身を除く): 17037940882

約数列:

[1, 2, 5, 10, 181, 362, 905, 1663, 1810, 3326, 6977, 8315, 13954, 16630, 34885, 69770, 301003, 602006, 1262837, 1505015, 2525674, 3010030, 6314185, 11602751, 12628370, 23205502, 58013755, 116027510, 2100097931, 4200195862, 10500489655, 21000979310]

約数ペア:

[(1, 21000979310), (2, 10500489655), (5, 4200195862), (10, 2100097931), (181, 116027510), (362, 58013755), (905, 23205502), (1663, 12628370), (1810, 11602751), (3326, 6314185), (6977, 3010030), (8315, 2525674), (13954, 1505015), (16630, 1262837), (34885, 602006), (69770, 301003)]