20127916

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:358

約数の個数: 36

約数和(自身を含む): 38020752

約数和(自身を除く): 17892836

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 212, 263, 361, 526, 722, 1007, 1052, 1444, 2014, 4028, 4997, 9994, 13939, 19133, 19988, 27878, 38266, 55756, 76532, 94943, 189886, 264841, 379772, 529682, 1059364, 5031979, 10063958, 20127916]

約数ペア:

[(1, 20127916), (2, 10063958), (4, 5031979), (19, 1059364), (38, 529682), (53, 379772), (76, 264841), (106, 189886), (212, 94943), (263, 76532), (361, 55756), (526, 38266), (722, 27878), (1007, 19988), (1052, 19133), (1444, 13939), (2014, 9994), (4028, 4997)]