21554930

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2767}}^1$

素因数の和:2834

約数の個数: 32

約数和(自身を含む): 41852160

約数和(自身を除く): 20297230

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 2767, 3895, 5534, 7790, 13835, 27670, 52573, 105146, 113447, 226894, 262865, 525730, 567235, 1134470, 2155493, 4310986, 10777465, 21554930]

約数ペア:

[(1, 21554930), (2, 10777465), (5, 4310986), (10, 2155493), (19, 1134470), (38, 567235), (41, 525730), (82, 262865), (95, 226894), (190, 113447), (205, 105146), (410, 52573), (779, 27670), (1558, 13835), (2767, 7790), (3895, 5534)]