21744072

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:292

約数の個数: 128

約数和(自身を含む): 70329600

約数和(自身を除く): 48585528

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 73, 84, 108, 126, 146, 168, 189, 197, 216, 219, 252, 292, 378, 394, 438, 504, 511, 584, 591, 657, 756, 788, 876, 1022, 1182, 1314, 1379, 1512, 1533, 1576, 1752, 1773, 1971, 2044, 2364, 2628, 2758, 3066, 3546, 3942, 4088, 4137, 4599, 4728, 5256, 5319, 5516, 6132, 7092, 7884, 8274, 9198, 10638, 11032, 12264, 12411, 13797, 14184, 14381, 15768, 16548, 18396, 21276, 24822, 27594, 28762, 33096, 36792, 37233, 42552, 43143, 49644, 55188, 57524, 74466, 86286, 99288, 100667, 110376, 115048, 129429, 148932, 172572, 201334, 258858, 297864, 302001, 345144, 388287, 402668, 517716, 604002, 776574, 805336, 906003, 1035432, 1208004, 1553148, 1812006, 2416008, 2718009, 3106296, 3624012, 5436018, 7248024, 10872036, 21744072]

約数ペア:

[(1, 21744072), (2, 10872036), (3, 7248024), (4, 5436018), (6, 3624012), (7, 3106296), (8, 2718009), (9, 2416008), (12, 1812006), (14, 1553148), (18, 1208004), (21, 1035432), (24, 906003), (27, 805336), (28, 776574), (36, 604002), (42, 517716), (54, 402668), (56, 388287), (63, 345144), (72, 302001), (73, 297864), (84, 258858), (108, 201334), (126, 172572), (146, 148932), (168, 129429), (189, 115048), (197, 110376), (216, 100667), (219, 99288), (252, 86286), (292, 74466), (378, 57524), (394, 55188), (438, 49644), (504, 43143), (511, 42552), (584, 37233), (591, 36792), (657, 33096), (756, 28762), (788, 27594), (876, 24822), (1022, 21276), (1182, 18396), (1314, 16548), (1379, 15768), (1512, 14381), (1533, 14184), (1576, 13797), (1752, 12411), (1773, 12264), (1971, 11032), (2044, 10638), (2364, 9198), (2628, 8274), (2758, 7884), (3066, 7092), (3546, 6132), (3942, 5516), (4088, 5319), (4137, 5256), (4599, 4728)]