20903344

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{47}}^1$

素因数の和:111

約数の個数: 120

約数和(自身を含む): 54425088

約数和(自身を除く): 33521744

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 44, 47, 56, 76, 77, 88, 94, 112, 133, 152, 154, 176, 188, 209, 266, 304, 308, 329, 361, 376, 418, 517, 532, 616, 658, 722, 752, 836, 893, 1034, 1064, 1232, 1316, 1444, 1463, 1672, 1786, 2068, 2128, 2527, 2632, 2888, 2926, 3344, 3572, 3619, 3971, 4136, 5054, 5264, 5776, 5852, 6251, 7144, 7238, 7942, 8272, 9823, 10108, 11704, 12502, 14288, 14476, 15884, 16967, 19646, 20216, 23408, 25004, 27797, 28952, 31768, 33934, 39292, 40432, 50008, 55594, 57904, 63536, 67868, 68761, 78584, 100016, 111188, 118769, 135736, 137522, 157168, 186637, 222376, 237538, 271472, 275044, 373274, 444752, 475076, 550088, 746548, 950152, 1100176, 1306459, 1493096, 1900304, 2612918, 2986192, 5225836, 10451672, 20903344]

約数ペア:

[(1, 20903344), (2, 10451672), (4, 5225836), (7, 2986192), (8, 2612918), (11, 1900304), (14, 1493096), (16, 1306459), (19, 1100176), (22, 950152), (28, 746548), (38, 550088), (44, 475076), (47, 444752), (56, 373274), (76, 275044), (77, 271472), (88, 237538), (94, 222376), (112, 186637), (133, 157168), (152, 137522), (154, 135736), (176, 118769), (188, 111188), (209, 100016), (266, 78584), (304, 68761), (308, 67868), (329, 63536), (361, 57904), (376, 55594), (418, 50008), (517, 40432), (532, 39292), (616, 33934), (658, 31768), (722, 28952), (752, 27797), (836, 25004), (893, 23408), (1034, 20216), (1064, 19646), (1232, 16967), (1316, 15884), (1444, 14476), (1463, 14288), (1672, 12502), (1786, 11704), (2068, 10108), (2128, 9823), (2527, 8272), (2632, 7942), (2888, 7238), (2926, 7144), (3344, 6251), (3572, 5852), (3619, 5776), (3971, 5264), (4136, 5054)]