20620782

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12589}}^1$

素因数の和:12617

約数の個数: 48

約数和(自身を含む): 54993120

約数和(自身を除く): 34372338

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 63, 78, 91, 117, 126, 182, 234, 273, 546, 819, 1638, 12589, 25178, 37767, 75534, 88123, 113301, 163657, 176246, 226602, 264369, 327314, 490971, 528738, 793107, 981942, 1145599, 1472913, 1586214, 2291198, 2945826, 3436797, 6873594, 10310391, 20620782]

約数ペア:

[(1, 20620782), (2, 10310391), (3, 6873594), (6, 3436797), (7, 2945826), (9, 2291198), (13, 1586214), (14, 1472913), (18, 1145599), (21, 981942), (26, 793107), (39, 528738), (42, 490971), (63, 327314), (78, 264369), (91, 226602), (117, 176246), (126, 163657), (182, 113301), (234, 88123), (273, 75534), (546, 37767), (819, 25178), (1638, 12589)]