20807045

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{151}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 29884416

約数和(自身を除く): 9077371

約数列:

[1, 5, 7, 31, 35, 127, 151, 155, 217, 635, 755, 889, 1057, 1085, 3937, 4445, 4681, 5285, 19177, 19685, 23405, 27559, 32767, 95885, 134239, 137795, 163835, 594487, 671195, 2972435, 4161409, 20807045]

約数ペア:

[(1, 20807045), (5, 4161409), (7, 2972435), (31, 671195), (35, 594487), (127, 163835), (151, 137795), (155, 134239), (217, 95885), (635, 32767), (755, 27559), (889, 23405), (1057, 19685), (1085, 19177), (3937, 5285), (4445, 4681)]