21891146

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4973}}^1$

素因数の和:5077

約数の個数: 16

約数和(自身を含む): 34380288

約数和(自身を除く): 12489142

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 4973, 9946, 154163, 308326, 353083, 706166, 10945573, 21891146]

約数ペア:

[(1, 21891146), (2, 10945573), (31, 706166), (62, 353083), (71, 308326), (142, 154163), (2201, 9946), (4402, 4973)]