81912138

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1657}}^1$

素因数の和:1787

約数の個数: 64

約数和(自身を含む): 206281728

約数和(自身を除く): 124369590

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 107, 154, 214, 231, 321, 462, 642, 749, 1177, 1498, 1657, 2247, 2354, 3314, 3531, 4494, 4971, 7062, 8239, 9942, 11599, 16478, 18227, 23198, 24717, 34797, 36454, 49434, 54681, 69594, 109362, 127589, 177299, 255178, 354598, 382767, 531897, 765534, 1063794, 1241093, 1950289, 2482186, 3723279, 3900578, 5850867, 7446558, 11701734, 13652023, 27304046, 40956069, 81912138]

約数ペア:

[(1, 81912138), (2, 40956069), (3, 27304046), (6, 13652023), (7, 11701734), (11, 7446558), (14, 5850867), (21, 3900578), (22, 3723279), (33, 2482186), (42, 1950289), (66, 1241093), (77, 1063794), (107, 765534), (154, 531897), (214, 382767), (231, 354598), (321, 255178), (462, 177299), (642, 127589), (749, 109362), (1177, 69594), (1498, 54681), (1657, 49434), (2247, 36454), (2354, 34797), (3314, 24717), (3531, 23198), (4494, 18227), (4971, 16478), (7062, 11599), (8239, 9942)]