20799177

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:111

約数の個数: 64

約数和(自身を含む): 36288000

約数和(自身を除く): 15488823

約数列:

[1, 3, 7, 17, 21, 29, 41, 49, 51, 87, 119, 123, 147, 203, 287, 343, 357, 493, 609, 697, 833, 861, 1029, 1189, 1421, 1479, 2009, 2091, 2499, 3451, 3567, 4263, 4879, 5831, 6027, 8323, 9947, 10353, 14063, 14637, 17493, 20213, 24157, 24969, 29841, 34153, 42189, 58261, 60639, 72471, 102459, 141491, 169099, 174783, 239071, 407827, 424473, 507297, 717213, 990437, 1223481, 2971311, 6933059, 20799177]

約数ペア:

[(1, 20799177), (3, 6933059), (7, 2971311), (17, 1223481), (21, 990437), (29, 717213), (41, 507297), (49, 424473), (51, 407827), (87, 239071), (119, 174783), (123, 169099), (147, 141491), (203, 102459), (287, 72471), (343, 60639), (357, 58261), (493, 42189), (609, 34153), (697, 29841), (833, 24969), (861, 24157), (1029, 20213), (1189, 17493), (1421, 14637), (1479, 14063), (2009, 10353), (2091, 9947), (2499, 8323), (3451, 6027), (3567, 5831), (4263, 4879)]