21485572

素因数分解:

$2^2\times {\mathrm{131}}^2\times {\mathrm{313}}^1$

素因数の和:579

約数の個数: 18

約数和(自身を含む): 38010014

約数和(自身を除く): 16524442

約数列:

[1, 2, 4, 131, 262, 313, 524, 626, 1252, 17161, 34322, 41003, 68644, 82006, 164012, 5371393, 10742786, 21485572]

約数ペア:

[(1, 21485572), (2, 10742786), (4, 5371393), (131, 164012), (262, 82006), (313, 68644), (524, 41003), (626, 34322), (1252, 17161)]