20971611

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4229}}^1$

素因数の和:4283

約数の個数: 24

約数和(自身を含む): 32994000

約数和(自身を除く): 12022389

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 4229, 4959, 12687, 38061, 80351, 122641, 241053, 367923, 723159, 1103769, 2330179, 6990537, 20971611]

約数ペア:

[(1, 20971611), (3, 6990537), (9, 2330179), (19, 1103769), (29, 723159), (57, 367923), (87, 241053), (171, 122641), (261, 80351), (551, 38061), (1653, 12687), (4229, 4959)]