20781222

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1451}}^1$

素因数の和:1505

約数の個数: 64

約数和(自身を含む): 53526528

約数和(自身を除く): 32745306

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 31, 33, 42, 62, 66, 77, 93, 154, 186, 217, 231, 341, 434, 462, 651, 682, 1023, 1302, 1451, 2046, 2387, 2902, 4353, 4774, 7161, 8706, 10157, 14322, 15961, 20314, 30471, 31922, 44981, 47883, 60942, 89962, 95766, 111727, 134943, 223454, 269886, 314867, 335181, 494791, 629734, 670362, 944601, 989582, 1484373, 1889202, 2968746, 3463537, 6927074, 10390611, 20781222]

約数ペア:

[(1, 20781222), (2, 10390611), (3, 6927074), (6, 3463537), (7, 2968746), (11, 1889202), (14, 1484373), (21, 989582), (22, 944601), (31, 670362), (33, 629734), (42, 494791), (62, 335181), (66, 314867), (77, 269886), (93, 223454), (154, 134943), (186, 111727), (217, 95766), (231, 89962), (341, 60942), (434, 47883), (462, 44981), (651, 31922), (682, 30471), (1023, 20314), (1302, 15961), (1451, 14322), (2046, 10157), (2387, 8706), (2902, 7161), (4353, 4774)]