21177904

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{10939}}^1$

素因数の和:10969

約数の個数: 30

約数和(自身を含む): 45105620

約数和(自身を除く): 23927716

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 121, 176, 242, 484, 968, 1936, 10939, 21878, 43756, 87512, 120329, 175024, 240658, 481316, 962632, 1323619, 1925264, 2647238, 5294476, 10588952, 21177904]

約数ペア:

[(1, 21177904), (2, 10588952), (4, 5294476), (8, 2647238), (11, 1925264), (16, 1323619), (22, 962632), (44, 481316), (88, 240658), (121, 175024), (176, 120329), (242, 87512), (484, 43756), (968, 21878), (1936, 10939)]