21723083135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1\times {\mathrm{1103}}^1$

素因数の和:1608

約数の個数: 64

約数和(自身を含む): 30447083520

約数和(自身を除く): 8724000385

約数列:

[1, 5, 13, 19, 37, 65, 95, 185, 247, 431, 481, 703, 1103, 1235, 2155, 2405, 3515, 5515, 5603, 8189, 9139, 14339, 15947, 20957, 28015, 40811, 40945, 45695, 71695, 79735, 104785, 106457, 204055, 207311, 272441, 302993, 475393, 530543, 532285, 775409, 1036555, 1362205, 1514965, 2376965, 2652715, 3877045, 3938909, 6180109, 9032467, 10080317, 17589541, 19694545, 30900545, 45162335, 50401585, 87947705, 117422071, 228664033, 334201279, 587110355, 1143320165, 1671006395, 4344616627, 21723083135]

約数ペア:

[(1, 21723083135), (5, 4344616627), (13, 1671006395), (19, 1143320165), (37, 587110355), (65, 334201279), (95, 228664033), (185, 117422071), (247, 87947705), (431, 50401585), (481, 45162335), (703, 30900545), (1103, 19694545), (1235, 17589541), (2155, 10080317), (2405, 9032467), (3515, 6180109), (5515, 3938909), (5603, 3877045), (8189, 2652715), (9139, 2376965), (14339, 1514965), (15947, 1362205), (20957, 1036555), (28015, 775409), (40811, 532285), (40945, 530543), (45695, 475393), (71695, 302993), (79735, 272441), (104785, 207311), (106457, 204055)]