21553406

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{35803}}^1$

素因数の和:35855

約数の個数: 16

約数和(自身を含む): 37809024

約数和(自身を除く): 16255618

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 35803, 71606, 250621, 501242, 1539529, 3079058, 10776703, 21553406]

約数ペア:

[(1, 21553406), (2, 10776703), (7, 3079058), (14, 1539529), (43, 501242), (86, 250621), (301, 71606), (602, 35803)]