21546868

素因数分解:

$2^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2339}}^1$

素因数の和:2404

約数の個数: 36

約数和(自身を含む): 44815680

約数和(自身を除く): 23268812

約数列:

[1, 2, 4, 7, 14, 28, 47, 49, 94, 98, 188, 196, 329, 658, 1316, 2303, 2339, 4606, 4678, 9212, 9356, 16373, 32746, 65492, 109933, 114611, 219866, 229222, 439732, 458444, 769531, 1539062, 3078124, 5386717, 10773434, 21546868]

約数ペア:

[(1, 21546868), (2, 10773434), (4, 5386717), (7, 3078124), (14, 1539062), (28, 769531), (47, 458444), (49, 439732), (94, 229222), (98, 219866), (188, 114611), (196, 109933), (329, 65492), (658, 32746), (1316, 16373), (2303, 9356), (2339, 9212), (4606, 4678)]