20975350

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3467}}^1$

素因数の和:3501

約数の個数: 36

約数和(自身を含む): 42895692

約数和(自身を除く): 21920342

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 3467, 6050, 6934, 17335, 34670, 38137, 76274, 86675, 173350, 190685, 381370, 419507, 839014, 953425, 1906850, 2097535, 4195070, 10487675, 20975350]

約数ペア:

[(1, 20975350), (2, 10487675), (5, 4195070), (10, 2097535), (11, 1906850), (22, 953425), (25, 839014), (50, 419507), (55, 381370), (110, 190685), (121, 173350), (242, 86675), (275, 76274), (550, 38137), (605, 34670), (1210, 17335), (3025, 6934), (3467, 6050)]