21594755

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1531}}^1$

素因数の和:1587

約数の個数: 32

約数和(自身を含む): 32944128

約数和(自身を除く): 11349373

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1085, 1531, 2015, 2821, 7655, 10717, 14105, 19903, 47461, 53585, 99515, 139321, 237305, 332227, 616993, 696605, 1661135, 3084965, 4318951, 21594755]

約数ペア:

[(1, 21594755), (5, 4318951), (7, 3084965), (13, 1661135), (31, 696605), (35, 616993), (65, 332227), (91, 237305), (155, 139321), (217, 99515), (403, 53585), (455, 47461), (1085, 19903), (1531, 14105), (2015, 10717), (2821, 7655)]