21406792

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{243259}}^1$

素因数の和:243276

約数の個数: 16

約数和(自身を含む): 43786800

約数和(自身を除く): 22380008

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 243259, 486518, 973036, 1946072, 2675849, 5351698, 10703396, 21406792]

約数ペア:

[(1, 21406792), (2, 10703396), (4, 5351698), (8, 2675849), (11, 1946072), (22, 973036), (44, 486518), (88, 243259)]