21347272

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{39827}}^1$

素因数の和:39900

約数の個数: 16

約数和(自身を含む): 40624560

約数和(自身を除く): 19277288

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 39827, 79654, 159308, 318616, 2668409, 5336818, 10673636, 21347272]

約数ペア:

[(1, 21347272), (2, 10673636), (4, 5336818), (8, 2668409), (67, 318616), (134, 159308), (268, 79654), (536, 39827)]