21477148

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{677}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 47384064

約数和(自身を除く): 25906916

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 103, 154, 206, 308, 412, 677, 721, 1133, 1354, 1442, 2266, 2708, 2884, 4532, 4739, 7447, 7931, 9478, 14894, 15862, 18956, 29788, 31724, 52129, 69731, 104258, 139462, 208516, 278924, 488117, 767041, 976234, 1534082, 1952468, 3068164, 5369287, 10738574, 21477148]

約数ペア:

[(1, 21477148), (2, 10738574), (4, 5369287), (7, 3068164), (11, 1952468), (14, 1534082), (22, 976234), (28, 767041), (44, 488117), (77, 278924), (103, 208516), (154, 139462), (206, 104258), (308, 69731), (412, 52129), (677, 31724), (721, 29788), (1133, 18956), (1354, 15862), (1442, 14894), (2266, 9478), (2708, 7931), (2884, 7447), (4532, 4739)]