28186538

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{1721}}^1$

素因数の和:2173

約数の個数: 16

約数和(自身を含む): 44634240

約数和(自身を除く): 16447702

約数列:

[1, 2, 19, 38, 431, 862, 1721, 3442, 8189, 16378, 32699, 65398, 741751, 1483502, 14093269, 28186538]

約数ペア:

[(1, 28186538), (2, 14093269), (19, 1483502), (38, 741751), (431, 65398), (862, 32699), (1721, 16378), (3442, 8189)]