20487928

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{134789}}^1$

素因数の和:134814

約数の個数: 16

約数和(自身を含む): 40437000

約数和(自身を除く): 19949072

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 134789, 269578, 539156, 1078312, 2560991, 5121982, 10243964, 20487928]

約数ペア:

[(1, 20487928), (2, 10243964), (4, 5121982), (8, 2560991), (19, 1078312), (38, 539156), (76, 269578), (152, 134789)]