18517581978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{1087}}^1\times {\mathrm{405607}}^1$

素因数の和:406706

約数の個数: 32

約数和(自身を含む): 42364944384

約数和(自身を除く): 23847362406

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 1087, 2174, 3261, 6522, 7609, 15218, 22827, 45654, 405607, 811214, 1216821, 2433642, 2839249, 5678498, 8517747, 17035494, 440894809, 881789618, 1322684427, 2645368854, 3086263663, 6172527326, 9258790989, 18517581978]

約数ペア:

[(1, 18517581978), (2, 9258790989), (3, 6172527326), (6, 3086263663), (7, 2645368854), (14, 1322684427), (21, 881789618), (42, 440894809), (1087, 17035494), (2174, 8517747), (3261, 5678498), (6522, 2839249), (7609, 2433642), (15218, 1216821), (22827, 811214), (45654, 405607)]