19966188

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{419}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 53766720

約数和(自身を除く): 33800532

約数列:

[1, 2, 3, 4, 6, 11, 12, 19, 22, 33, 38, 44, 57, 66, 76, 114, 132, 209, 228, 361, 418, 419, 627, 722, 836, 838, 1083, 1254, 1257, 1444, 1676, 2166, 2508, 2514, 3971, 4332, 4609, 5028, 7942, 7961, 9218, 11913, 13827, 15884, 15922, 18436, 23826, 23883, 27654, 31844, 47652, 47766, 55308, 87571, 95532, 151259, 175142, 262713, 302518, 350284, 453777, 525426, 605036, 907554, 1050852, 1663849, 1815108, 3327698, 4991547, 6655396, 9983094, 19966188]

約数ペア:

[(1, 19966188), (2, 9983094), (3, 6655396), (4, 4991547), (6, 3327698), (11, 1815108), (12, 1663849), (19, 1050852), (22, 907554), (33, 605036), (38, 525426), (44, 453777), (57, 350284), (66, 302518), (76, 262713), (114, 175142), (132, 151259), (209, 95532), (228, 87571), (361, 55308), (418, 47766), (419, 47652), (627, 31844), (722, 27654), (836, 23883), (838, 23826), (1083, 18436), (1254, 15922), (1257, 15884), (1444, 13827), (1676, 11913), (2166, 9218), (2508, 7961), (2514, 7942), (3971, 5028), (4332, 4609)]