20570277

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{499}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 34048000

約数和(自身を除く): 13477723

約数列:

[1, 3, 7, 13, 21, 39, 91, 151, 273, 453, 499, 1057, 1497, 1963, 3171, 3493, 5889, 6487, 10479, 13741, 19461, 41223, 45409, 75349, 136227, 226047, 527443, 979537, 1582329, 2938611, 6856759, 20570277]

約数ペア:

[(1, 20570277), (3, 6856759), (7, 2938611), (13, 1582329), (21, 979537), (39, 527443), (91, 226047), (151, 136227), (273, 75349), (453, 45409), (499, 41223), (1057, 19461), (1497, 13741), (1963, 10479), (3171, 6487), (3493, 5889)]