21367486

素因数分解:

$2^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{2309}}^1$

素因数の和:2979

約数の個数: 16

約数和(自身を含む): 36701280

約数和(自身を除く): 15333794

約数列:

[1, 2, 7, 14, 661, 1322, 2309, 4618, 4627, 9254, 16163, 32326, 1526249, 3052498, 10683743, 21367486]

約数ペア:

[(1, 21367486), (2, 10683743), (7, 3052498), (14, 1526249), (661, 32326), (1322, 16163), (2309, 9254), (4618, 4627)]