20277813

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 29417472

約数和(自身を除く): 9139659

約数列:

[1, 3, 31, 37, 71, 83, 93, 111, 213, 249, 1147, 2201, 2573, 2627, 3071, 3441, 5893, 6603, 7719, 7881, 9213, 17679, 81437, 95201, 182683, 218041, 244311, 285603, 548049, 654123, 6759271, 20277813]

約数ペア:

[(1, 20277813), (3, 6759271), (31, 654123), (37, 548049), (71, 285603), (83, 244311), (93, 218041), (111, 182683), (213, 95201), (249, 81437), (1147, 17679), (2201, 9213), (2573, 7881), (2627, 7719), (3071, 6603), (3441, 5893)]