509988479

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{499}}^1\times {\mathrm{1021}}^1$

素因数の和:1551

約数の個数: 32

約数和(自身を含む): 686784000

約数和(自身を除く): 176795521

約数列:

[1, 7, 11, 13, 77, 91, 143, 499, 1001, 1021, 3493, 5489, 6487, 7147, 11231, 13273, 38423, 45409, 71357, 78617, 92911, 146003, 499499, 509479, 1022021, 3566353, 5604269, 6623227, 39229883, 46362589, 72855497, 509988479]

約数ペア:

[(1, 509988479), (7, 72855497), (11, 46362589), (13, 39229883), (77, 6623227), (91, 5604269), (143, 3566353), (499, 1022021), (1001, 509479), (1021, 499499), (3493, 146003), (5489, 92911), (6487, 78617), (7147, 71357), (11231, 45409), (13273, 38423)]