21038536

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{39251}}^1$

素因数の和:39324

約数の個数: 16

約数和(自身を含む): 40037040

約数和(自身を除く): 18998504

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 39251, 78502, 157004, 314008, 2629817, 5259634, 10519268, 21038536]

約数ペア:

[(1, 21038536), (2, 10519268), (4, 5259634), (8, 2629817), (67, 314008), (134, 157004), (268, 78502), (536, 39251)]