21122878

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{65599}}^1$

素因数の和:65631

約数の個数: 16

約数和(自身を含む): 37785600

約数和(自身を除く): 16662722

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 65599, 131198, 459193, 918386, 1508777, 3017554, 10561439, 21122878]

約数ペア:

[(1, 21122878), (2, 10561439), (7, 3017554), (14, 1508777), (23, 918386), (46, 459193), (161, 131198), (322, 65599)]