21778488

素因数分解:

$2^3\times 3^2\times {\mathrm{131}}^1\times {\mathrm{2309}}^1$

素因数の和:2452

約数の個数: 48

約数和(自身を含む): 59459400

約数和(自身を除く): 37680912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 131, 262, 393, 524, 786, 1048, 1179, 1572, 2309, 2358, 3144, 4618, 4716, 6927, 9236, 9432, 13854, 18472, 20781, 27708, 41562, 55416, 83124, 166248, 302479, 604958, 907437, 1209916, 1814874, 2419832, 2722311, 3629748, 5444622, 7259496, 10889244, 21778488]

約数ペア:

[(1, 21778488), (2, 10889244), (3, 7259496), (4, 5444622), (6, 3629748), (8, 2722311), (9, 2419832), (12, 1814874), (18, 1209916), (24, 907437), (36, 604958), (72, 302479), (131, 166248), (262, 83124), (393, 55416), (524, 41562), (786, 27708), (1048, 20781), (1179, 18472), (1572, 13854), (2309, 9432), (2358, 9236), (3144, 6927), (4618, 4716)]