20808515493

素因数分解:

$3^7\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{4621}}^1$

素因数の和:4742

約数の個数: 64

約数和(自身を含む): 32745945600

約数和(自身を除く): 11937430107

約数列:

[1, 3, 9, 27, 29, 71, 81, 87, 213, 243, 261, 639, 729, 783, 1917, 2059, 2187, 2349, 4621, 5751, 6177, 7047, 13863, 17253, 18531, 21141, 41589, 51759, 55593, 63423, 124767, 134009, 155277, 166779, 328091, 374301, 402027, 500337, 984273, 1122903, 1206081, 1501011, 2952819, 3368709, 3618243, 4503033, 8858457, 9514639, 10106127, 10854729, 26575371, 28543917, 32564187, 79726113, 85631751, 97692561, 239178339, 256895253, 293077683, 717535017, 770685759, 2312057277, 6936171831, 20808515493]

約数ペア:

[(1, 20808515493), (3, 6936171831), (9, 2312057277), (27, 770685759), (29, 717535017), (71, 293077683), (81, 256895253), (87, 239178339), (213, 97692561), (243, 85631751), (261, 79726113), (639, 32564187), (729, 28543917), (783, 26575371), (1917, 10854729), (2059, 10106127), (2187, 9514639), (2349, 8858457), (4621, 4503033), (5751, 3618243), (6177, 3368709), (7047, 2952819), (13863, 1501011), (17253, 1206081), (18531, 1122903), (21141, 984273), (41589, 500337), (51759, 402027), (55593, 374301), (63423, 328091), (124767, 166779), (134009, 155277)]