20807714473

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{38449}}^1$

素因数の和:38801

約数の個数: 32

約数和(自身を含む): 27044192000

約数和(自身を除く): 6236477527

約数列:

[1, 7, 13, 19, 91, 133, 247, 313, 1729, 2191, 4069, 5947, 28483, 38449, 41629, 77311, 269143, 499837, 541177, 730531, 3498859, 5113717, 9496903, 12034537, 66478321, 84241759, 156448981, 228656203, 1095142867, 1600593421, 2972530639, 20807714473]

約数ペア:

[(1, 20807714473), (7, 2972530639), (13, 1600593421), (19, 1095142867), (91, 228656203), (133, 156448981), (247, 84241759), (313, 66478321), (1729, 12034537), (2191, 9496903), (4069, 5113717), (5947, 3498859), (28483, 730531), (38449, 541177), (41629, 499837), (77311, 269143)]