19772170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1039}}^1$

素因数の和:1230

約数の個数: 32

約数和(自身を含む): 39087360

約数和(自身を除く): 19315190

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 173, 346, 865, 1039, 1730, 1903, 2078, 3806, 5195, 9515, 10390, 11429, 19030, 22858, 57145, 114290, 179747, 359494, 898735, 1797470, 1977217, 3954434, 9886085, 19772170]

約数ペア:

[(1, 19772170), (2, 9886085), (5, 3954434), (10, 1977217), (11, 1797470), (22, 898735), (55, 359494), (110, 179747), (173, 114290), (346, 57145), (865, 22858), (1039, 19030), (1730, 11429), (1903, 10390), (2078, 9515), (3806, 5195)]