20393008

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{29641}}^1$

素因数の和:29692

約数の個数: 20

約数和(自身を含む): 40431688

約数和(自身を除く): 20038680

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 29641, 59282, 118564, 237128, 474256, 1274563, 2549126, 5098252, 10196504, 20393008]

約数ペア:

[(1, 20393008), (2, 10196504), (4, 5098252), (8, 2549126), (16, 1274563), (43, 474256), (86, 237128), (172, 118564), (344, 59282), (688, 29641)]