18672236

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:422

約数の個数: 36

約数和(自身を含む): 36286656

約数和(自身を除く): 17614420

約数列:

[1, 2, 4, 11, 22, 44, 121, 173, 223, 242, 346, 446, 484, 692, 892, 1903, 2453, 3806, 4906, 7612, 9812, 20933, 26983, 38579, 41866, 53966, 77158, 83732, 107932, 154316, 424369, 848738, 1697476, 4668059, 9336118, 18672236]

約数ペア:

[(1, 18672236), (2, 9336118), (4, 4668059), (11, 1697476), (22, 848738), (44, 424369), (121, 154316), (173, 107932), (223, 83732), (242, 77158), (346, 53966), (446, 41866), (484, 38579), (692, 26983), (892, 20933), (1903, 9812), (2453, 7612), (3806, 4906)]