21494556

素因数分解:

$2^2\times 3^2\times {\mathrm{157}}^1\times {\mathrm{3803}}^1$

素因数の和:3970

約数の個数: 36

約数和(自身を含む): 54693912

約数和(自身を除く): 33199356

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 157, 314, 471, 628, 942, 1413, 1884, 2826, 3803, 5652, 7606, 11409, 15212, 22818, 34227, 45636, 68454, 136908, 597071, 1194142, 1791213, 2388284, 3582426, 5373639, 7164852, 10747278, 21494556]

約数ペア:

[(1, 21494556), (2, 10747278), (3, 7164852), (4, 5373639), (6, 3582426), (9, 2388284), (12, 1791213), (18, 1194142), (36, 597071), (157, 136908), (314, 68454), (471, 45636), (628, 34227), (942, 22818), (1413, 15212), (1884, 11409), (2826, 7606), (3803, 5652)]