21906401668

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{293}}^1\times {\mathrm{134471}}^1$

素因数の和:134907

約数の個数: 24

約数和(自身を含む): 38744072640

約数和(自身を除く): 16837670972

約数列:

[1, 2, 4, 139, 278, 293, 556, 586, 1172, 40727, 81454, 134471, 162908, 268942, 537884, 18691469, 37382938, 39400003, 74765876, 78800006, 157600012, 5476600417, 10953200834, 21906401668]

約数ペア:

[(1, 21906401668), (2, 10953200834), (4, 5476600417), (139, 157600012), (278, 78800006), (293, 74765876), (556, 39400003), (586, 37382938), (1172, 18691469), (40727, 537884), (81454, 268942), (134471, 162908)]