21984196

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1913}}^1$

素因数の和:1960

約数の個数: 36

約数和(自身を含む): 44133012

約数和(自身を除く): 22148816

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 169, 221, 338, 442, 676, 884, 1913, 2873, 3826, 5746, 7652, 11492, 24869, 32521, 49738, 65042, 99476, 130084, 323297, 422773, 646594, 845546, 1293188, 1691092, 5496049, 10992098, 21984196]

約数ペア:

[(1, 21984196), (2, 10992098), (4, 5496049), (13, 1691092), (17, 1293188), (26, 845546), (34, 646594), (52, 422773), (68, 323297), (169, 130084), (221, 99476), (338, 65042), (442, 49738), (676, 32521), (884, 24869), (1913, 11492), (2873, 7652), (3826, 5746)]