21928465208

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{195413}}^1$

素因数の和:195528

約数の個数: 48

約数和(自身を含む): 45058560120

約数和(自身を除く): 23130094912

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 104, 166, 169, 332, 338, 664, 676, 1079, 1352, 2158, 4316, 8632, 14027, 28054, 56108, 112216, 195413, 390826, 781652, 1563304, 2540369, 5080738, 10161476, 16219279, 20322952, 32438558, 33024797, 64877116, 66049594, 129754232, 132099188, 210850627, 264198376, 421701254, 843402508, 1686805016, 2741058151, 5482116302, 10964232604, 21928465208]

約数ペア:

[(1, 21928465208), (2, 10964232604), (4, 5482116302), (8, 2741058151), (13, 1686805016), (26, 843402508), (52, 421701254), (83, 264198376), (104, 210850627), (166, 132099188), (169, 129754232), (332, 66049594), (338, 64877116), (664, 33024797), (676, 32438558), (1079, 20322952), (1352, 16219279), (2158, 10161476), (4316, 5080738), (8632, 2540369), (14027, 1563304), (28054, 781652), (56108, 390826), (112216, 195413)]