21219738

素因数分解:

$2^1\times 3^1\times {\mathrm{409}}^1\times {\mathrm{8647}}^1$

素因数の和:9061

約数の個数: 16

約数和(自身を含む): 42548160

約数和(自身を除く): 21328422

約数列:

[1, 2, 3, 6, 409, 818, 1227, 2454, 8647, 17294, 25941, 51882, 3536623, 7073246, 10609869, 21219738]

約数ペア:

[(1, 21219738), (2, 10609869), (3, 7073246), (6, 3536623), (409, 51882), (818, 25941), (1227, 17294), (2454, 8647)]