28148978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:219

約数の個数: 48

約数和(自身を含む): 51070176

約数和(自身を除く): 22921198

約数列:

[1, 2, 11, 13, 22, 26, 67, 113, 134, 143, 169, 226, 286, 338, 737, 871, 1243, 1469, 1474, 1742, 1859, 2486, 2938, 3718, 7571, 9581, 11323, 15142, 16159, 19097, 19162, 22646, 32318, 38194, 83281, 98423, 124553, 166562, 196846, 210067, 249106, 420134, 1082653, 1279499, 2165306, 2558998, 14074489, 28148978]

約数ペア:

[(1, 28148978), (2, 14074489), (11, 2558998), (13, 2165306), (22, 1279499), (26, 1082653), (67, 420134), (113, 249106), (134, 210067), (143, 196846), (169, 166562), (226, 124553), (286, 98423), (338, 83281), (737, 38194), (871, 32318), (1243, 22646), (1469, 19162), (1474, 19097), (1742, 16159), (1859, 15142), (2486, 11323), (2938, 9581), (3718, 7571)]