21649100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19681}}^1$

素因数の和:19706

約数の個数: 36

約数和(自身を含む): 51251928

約数和(自身を除く): 29602828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 19681, 39362, 78724, 98405, 196810, 216491, 393620, 432982, 492025, 865964, 984050, 1082455, 1968100, 2164910, 4329820, 5412275, 10824550, 21649100]

約数ペア:

[(1, 21649100), (2, 10824550), (4, 5412275), (5, 4329820), (10, 2164910), (11, 1968100), (20, 1082455), (22, 984050), (25, 865964), (44, 492025), (50, 432982), (55, 393620), (100, 216491), (110, 196810), (220, 98405), (275, 78724), (550, 39362), (1100, 19681)]