1999210829

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:559

約数の個数: 64

約数和(自身を含む): 2737152000

約数和(自身を除く): 737941171

約数列:

[1, 7, 11, 17, 49, 71, 77, 119, 187, 343, 439, 497, 539, 781, 833, 1207, 1309, 3073, 3479, 3773, 4829, 5467, 5831, 7463, 8449, 9163, 13277, 21511, 24353, 31169, 33803, 38269, 52241, 59143, 64141, 82093, 92939, 150577, 218183, 236621, 267883, 342859, 365687, 414001, 529873, 574651, 650573, 1527281, 1656347, 2400013, 2559809, 3709111, 4022557, 4554011, 5828603, 10690967, 16800091, 25963777, 28157899, 40800221, 117600637, 181746439, 285601547, 1999210829]

約数ペア:

[(1, 1999210829), (7, 285601547), (11, 181746439), (17, 117600637), (49, 40800221), (71, 28157899), (77, 25963777), (119, 16800091), (187, 10690967), (343, 5828603), (439, 4554011), (497, 4022557), (539, 3709111), (781, 2559809), (833, 2400013), (1207, 1656347), (1309, 1527281), (3073, 650573), (3479, 574651), (3773, 529873), (4829, 414001), (5467, 365687), (5831, 342859), (7463, 267883), (8449, 236621), (9163, 218183), (13277, 150577), (21511, 92939), (24353, 82093), (31169, 64141), (33803, 59143), (38269, 52241)]