20008388731

素因数分解:

${\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{571}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 22821495840

約数和(自身を除く): 2813107109

約数列:

[1, 17, 29, 37, 113, 289, 493, 571, 629, 1073, 1921, 3277, 4181, 8381, 9707, 10693, 16559, 18241, 21127, 32657, 55709, 64523, 71077, 121249, 165019, 281503, 310097, 359159, 612683, 947053, 1096891, 1208309, 1871167, 2061233, 2387351, 4785551, 6105703, 10415611, 18647147, 31809839, 35040961, 40584967, 69233179, 177065387, 540767263, 689944439, 1176964043, 20008388731]

約数ペア:

[(1, 20008388731), (17, 1176964043), (29, 689944439), (37, 540767263), (113, 177065387), (289, 69233179), (493, 40584967), (571, 35040961), (629, 31809839), (1073, 18647147), (1921, 10415611), (3277, 6105703), (4181, 4785551), (8381, 2387351), (9707, 2061233), (10693, 1871167), (16559, 1208309), (18241, 1096891), (21127, 947053), (32657, 612683), (55709, 359159), (64523, 310097), (71077, 281503), (121249, 165019)]