21097563

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{2441}}^1$

素因数の和:2554

約数の個数: 16

約数和(自身を含む): 29225856

約数和(自身を除く): 8128293

約数列:

[1, 3, 43, 67, 129, 201, 2441, 2881, 7323, 8643, 104963, 163547, 314889, 490641, 7032521, 21097563]

約数ペア:

[(1, 21097563), (3, 7032521), (43, 490641), (67, 314889), (129, 163547), (201, 104963), (2441, 8643), (2881, 7323)]