21124565

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54869}}^1$

素因数の和:54892

約数の個数: 16

約数和(自身を含む): 31605120

約数和(自身を除く): 10480555

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 54869, 274345, 384083, 603559, 1920415, 3017795, 4224913, 21124565]

約数ペア:

[(1, 21124565), (5, 4224913), (7, 3017795), (11, 1920415), (35, 603559), (55, 384083), (77, 274345), (385, 54869)]