20026741

素因数分解:

$7^4\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:486

約数の個数: 20

約数和(自身を含む): 24648800

約数和(自身を除く): 4622059

約数列:

[1, 7, 19, 49, 133, 343, 439, 931, 2401, 3073, 6517, 8341, 21511, 45619, 58387, 150577, 408709, 1054039, 2860963, 20026741]

約数ペア:

[(1, 20026741), (7, 2860963), (19, 1054039), (49, 408709), (133, 150577), (343, 58387), (439, 45619), (931, 21511), (2401, 8341), (3073, 6517)]