21087044

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{311}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 42771456

約数和(自身を除く): 21684412

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 67, 92, 134, 253, 268, 311, 506, 622, 737, 1012, 1244, 1474, 1541, 2948, 3082, 3421, 6164, 6842, 7153, 13684, 14306, 16951, 20837, 28612, 33902, 41674, 67804, 78683, 83348, 157366, 229207, 314732, 458414, 479251, 916828, 958502, 1917004, 5271761, 10543522, 21087044]

約数ペア:

[(1, 21087044), (2, 10543522), (4, 5271761), (11, 1917004), (22, 958502), (23, 916828), (44, 479251), (46, 458414), (67, 314732), (92, 229207), (134, 157366), (253, 83348), (268, 78683), (311, 67804), (506, 41674), (622, 33902), (737, 28612), (1012, 20837), (1244, 16951), (1474, 14306), (1541, 13684), (2948, 7153), (3082, 6842), (3421, 6164)]