20685623

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3617}}^1$

素因数の和:3686

約数の個数: 16

約数和(自身を含む): 25470720

約数和(自身を除く): 4785097

約数列:

[1, 7, 19, 43, 133, 301, 817, 3617, 5719, 25319, 68723, 155531, 481061, 1088717, 2955089, 20685623]

約数ペア:

[(1, 20685623), (7, 2955089), (19, 1088717), (43, 481061), (133, 155531), (301, 68723), (817, 25319), (3617, 5719)]