20960863

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1987}}^1$

素因数の和:2142

約数の個数: 16

約数和(自身を含む): 26337024

約数和(自身を除く): 5376161

約数列:

[1, 7, 11, 77, 137, 959, 1507, 1987, 10549, 13909, 21857, 152999, 272219, 1905533, 2994409, 20960863]

約数ペア:

[(1, 20960863), (7, 2994409), (11, 1905533), (77, 272219), (137, 152999), (959, 21857), (1507, 13909), (1987, 10549)]