20657966

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47599}}^1$

素因数の和:47639

約数の個数: 16

約数和(自身を含む): 36556800

約数和(自身を除く): 15898834

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 47599, 95198, 333193, 666386, 1475569, 2951138, 10328983, 20657966]

約数ペア:

[(1, 20657966), (2, 10328983), (7, 2951138), (14, 1475569), (31, 666386), (62, 333193), (217, 95198), (434, 47599)]