20757051

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19381}}^1$

素因数の和:19411

約数の個数: 24

約数和(自身を含む): 36283104

約数和(自身を除く): 15526053

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 19381, 58143, 135667, 174429, 329477, 407001, 988431, 1221003, 2306339, 2965293, 6919017, 20757051]

約数ペア:

[(1, 20757051), (3, 6919017), (7, 2965293), (9, 2306339), (17, 1221003), (21, 988431), (51, 407001), (63, 329477), (119, 174429), (153, 135667), (357, 58143), (1071, 19381)]