21793863

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{823}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 36176896

約数和(自身を除く): 14383033

約数列:

[1, 3, 7, 13, 21, 39, 91, 97, 273, 291, 679, 823, 1261, 2037, 2469, 3783, 5761, 8827, 10699, 17283, 26481, 32097, 74893, 79831, 224679, 239493, 558817, 1037803, 1676451, 3113409, 7264621, 21793863]

約数ペア:

[(1, 21793863), (3, 7264621), (7, 3113409), (13, 1676451), (21, 1037803), (39, 558817), (91, 239493), (97, 224679), (273, 79831), (291, 74893), (679, 32097), (823, 26481), (1261, 17283), (2037, 10699), (2469, 8827), (3783, 5761)]