21338548

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2389}}^1$

素因数の和:2440

約数の個数: 48

約数和(自身を含む): 48182400

約数和(自身を除く): 26843852

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 44, 58, 77, 116, 154, 203, 308, 319, 406, 638, 812, 1276, 2233, 2389, 4466, 4778, 8932, 9556, 16723, 26279, 33446, 52558, 66892, 69281, 105116, 138562, 183953, 277124, 367906, 484967, 735812, 762091, 969934, 1524182, 1939868, 3048364, 5334637, 10669274, 21338548]

約数ペア:

[(1, 21338548), (2, 10669274), (4, 5334637), (7, 3048364), (11, 1939868), (14, 1524182), (22, 969934), (28, 762091), (29, 735812), (44, 484967), (58, 367906), (77, 277124), (116, 183953), (154, 138562), (203, 105116), (308, 69281), (319, 66892), (406, 52558), (638, 33446), (812, 26279), (1276, 16723), (2233, 9556), (2389, 8932), (4466, 4778)]