20996858961

素因数分解:

$3^5\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{16493}}^1$

素因数の和:16565

約数の個数: 72

約数和(自身を含む): 35158346496

約数和(自身を除く): 14161487535

約数列:

[1, 3, 9, 13, 27, 31, 39, 81, 93, 117, 169, 243, 279, 351, 403, 507, 837, 1053, 1209, 1521, 2511, 3159, 3627, 4563, 5239, 7533, 10881, 13689, 15717, 16493, 32643, 41067, 47151, 49479, 97929, 141453, 148437, 214409, 424359, 445311, 511283, 643227, 1273077, 1335933, 1533849, 1929681, 2787317, 4007799, 4601547, 5789043, 6646679, 8361951, 13804641, 17367129, 19940037, 25085853, 41413923, 52101387, 59820111, 75257559, 86406827, 124241769, 179460333, 225772677, 259220481, 538380999, 677318031, 777661443, 1615142997, 2332984329, 6998952987, 20996858961]

約数ペア:

[(1, 20996858961), (3, 6998952987), (9, 2332984329), (13, 1615142997), (27, 777661443), (31, 677318031), (39, 538380999), (81, 259220481), (93, 225772677), (117, 179460333), (169, 124241769), (243, 86406827), (279, 75257559), (351, 59820111), (403, 52101387), (507, 41413923), (837, 25085853), (1053, 19940037), (1209, 17367129), (1521, 13804641), (2511, 8361951), (3159, 6646679), (3627, 5789043), (4563, 4601547), (5239, 4007799), (7533, 2787317), (10881, 1929681), (13689, 1533849), (15717, 1335933), (16493, 1273077), (32643, 643227), (41067, 511283), (47151, 445311), (49479, 424359), (97929, 214409), (141453, 148437)]