20513892

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2371}}^1$

素因数の和:2488

約数の個数: 48

約数和(自身を含む): 55258112

約数和(自身を除く): 34744220

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 103, 206, 309, 412, 618, 721, 1236, 1442, 2163, 2371, 2884, 4326, 4742, 7113, 8652, 9484, 14226, 16597, 28452, 33194, 49791, 66388, 99582, 199164, 244213, 488426, 732639, 976852, 1465278, 1709491, 2930556, 3418982, 5128473, 6837964, 10256946, 20513892]

約数ペア:

[(1, 20513892), (2, 10256946), (3, 6837964), (4, 5128473), (6, 3418982), (7, 2930556), (12, 1709491), (14, 1465278), (21, 976852), (28, 732639), (42, 488426), (84, 244213), (103, 199164), (206, 99582), (309, 66388), (412, 49791), (618, 33194), (721, 28452), (1236, 16597), (1442, 14226), (2163, 9484), (2371, 8652), (2884, 7113), (4326, 4742)]