20020637

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 26148864

約数和(自身を除く): 6128227

約数列:

[1, 7, 13, 31, 47, 91, 151, 217, 329, 403, 611, 1057, 1457, 1963, 2821, 4277, 4681, 7097, 10199, 13741, 18941, 32767, 49679, 60853, 92261, 132587, 220007, 425971, 645827, 1540049, 2860091, 20020637]

約数ペア:

[(1, 20020637), (7, 2860091), (13, 1540049), (31, 645827), (47, 425971), (91, 220007), (151, 132587), (217, 92261), (329, 60853), (403, 49679), (611, 32767), (1057, 18941), (1457, 13741), (1963, 10199), (2821, 7097), (4277, 4681)]