20019856

素因数分解:

$2^4\times {\mathrm{191}}^1\times {\mathrm{6551}}^1$

素因数の和:6750

約数の個数: 20

約数和(自身を含む): 38997504

約数和(自身を除く): 18977648

約数列:

[1, 2, 4, 8, 16, 191, 382, 764, 1528, 3056, 6551, 13102, 26204, 52408, 104816, 1251241, 2502482, 5004964, 10009928, 20019856]

約数ペア:

[(1, 20019856), (2, 10009928), (4, 5004964), (8, 2502482), (16, 1251241), (191, 104816), (382, 52408), (764, 26204), (1528, 13102), (3056, 6551)]