21705068

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3709}}^1$

素因数の和:3750

約数の個数: 48

約数和(自身を含む): 49862400

約数和(自身を除く): 28157332

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 133, 154, 209, 266, 308, 418, 532, 836, 1463, 2926, 3709, 5852, 7418, 14836, 25963, 40799, 51926, 70471, 81598, 103852, 140942, 163196, 281884, 285593, 493297, 571186, 775181, 986594, 1142372, 1550362, 1973188, 3100724, 5426267, 10852534, 21705068]

約数ペア:

[(1, 21705068), (2, 10852534), (4, 5426267), (7, 3100724), (11, 1973188), (14, 1550362), (19, 1142372), (22, 986594), (28, 775181), (38, 571186), (44, 493297), (76, 285593), (77, 281884), (133, 163196), (154, 140942), (209, 103852), (266, 81598), (308, 70471), (418, 51926), (532, 40799), (836, 25963), (1463, 14836), (2926, 7418), (3709, 5852)]