21294196

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1471}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 47480832

約数和(自身を除く): 26186636

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 47, 77, 94, 154, 188, 308, 329, 517, 658, 1034, 1316, 1471, 2068, 2942, 3619, 5884, 7238, 10297, 14476, 16181, 20594, 32362, 41188, 64724, 69137, 113267, 138274, 226534, 276548, 453068, 483959, 760507, 967918, 1521014, 1935836, 3042028, 5323549, 10647098, 21294196]

約数ペア:

[(1, 21294196), (2, 10647098), (4, 5323549), (7, 3042028), (11, 1935836), (14, 1521014), (22, 967918), (28, 760507), (44, 483959), (47, 453068), (77, 276548), (94, 226534), (154, 138274), (188, 113267), (308, 69137), (329, 64724), (517, 41188), (658, 32362), (1034, 20594), (1316, 16181), (1471, 14476), (2068, 10297), (2942, 7238), (3619, 5884)]