81781200193

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{91159}}^1$

素因数の和:91429

約数の個数: 32

約数和(自身を含む): 104176189440

約数和(自身を除く): 22394989247

約数列:

[1, 7, 11, 61, 77, 191, 427, 671, 1337, 2101, 4697, 11651, 14707, 81557, 91159, 128161, 638113, 897127, 1002749, 5560699, 7019243, 17411369, 38924893, 61167689, 121879583, 191525059, 428173823, 1062093509, 1340675413, 7434654563, 11683028599, 81781200193]

約数ペア:

[(1, 81781200193), (7, 11683028599), (11, 7434654563), (61, 1340675413), (77, 1062093509), (191, 428173823), (427, 191525059), (671, 121879583), (1337, 61167689), (2101, 38924893), (4697, 17411369), (11651, 7019243), (14707, 5560699), (81557, 1002749), (91159, 897127), (128161, 638113)]