21358218

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{72647}}^1$

素因数の和:72666

約数の個数: 24

約数和(自身を含む): 49691232

約数和(自身を除く): 28333014

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 72647, 145294, 217941, 435882, 508529, 1017058, 1525587, 3051174, 3559703, 7119406, 10679109, 21358218]

約数ペア:

[(1, 21358218), (2, 10679109), (3, 7119406), (6, 3559703), (7, 3051174), (14, 1525587), (21, 1017058), (42, 508529), (49, 435882), (98, 217941), (147, 145294), (294, 72647)]