21694816

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1$

素因数の和:476

約数の個数: 72

約数和(自身を含む): 50676192

約数和(自身を除く): 28981376

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 121, 143, 176, 208, 242, 286, 352, 416, 431, 484, 572, 862, 968, 1144, 1573, 1724, 1936, 2288, 3146, 3448, 3872, 4576, 4741, 5603, 6292, 6896, 9482, 11206, 12584, 13792, 18964, 22412, 25168, 37928, 44824, 50336, 52151, 61633, 75856, 89648, 104302, 123266, 151712, 179296, 208604, 246532, 417208, 493064, 677963, 834416, 986128, 1355926, 1668832, 1972256, 2711852, 5423704, 10847408, 21694816]

約数ペア:

[(1, 21694816), (2, 10847408), (4, 5423704), (8, 2711852), (11, 1972256), (13, 1668832), (16, 1355926), (22, 986128), (26, 834416), (32, 677963), (44, 493064), (52, 417208), (88, 246532), (104, 208604), (121, 179296), (143, 151712), (176, 123266), (208, 104302), (242, 89648), (286, 75856), (352, 61633), (416, 52151), (431, 50336), (484, 44824), (572, 37928), (862, 25168), (968, 22412), (1144, 18964), (1573, 13792), (1724, 12584), (1936, 11206), (2288, 9482), (3146, 6896), (3448, 6292), (3872, 5603), (4576, 4741)]