21782504

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{40639}}^1$

素因数の和:40712

約数の個数: 16

約数和(自身を含む): 41452800

約数和(自身を除く): 19670296

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 40639, 81278, 162556, 325112, 2722813, 5445626, 10891252, 21782504]

約数ペア:

[(1, 21782504), (2, 10891252), (4, 5445626), (8, 2722813), (67, 325112), (134, 162556), (268, 81278), (536, 40639)]