20478878

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{63599}}^1$

素因数の和:63631

約数の個数: 16

約数和(自身を含む): 36633600

約数和(自身を除く): 16154722

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 63599, 127198, 445193, 890386, 1462777, 2925554, 10239439, 20478878]

約数ペア:

[(1, 20478878), (2, 10239439), (7, 2925554), (14, 1462777), (23, 890386), (46, 445193), (161, 127198), (322, 63599)]