21568624

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 120

約数和(自身を含む): 55215216

約数和(自身を除く): 33646592

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 41, 44, 49, 56, 61, 77, 82, 88, 98, 112, 122, 154, 164, 176, 196, 244, 287, 308, 328, 392, 427, 451, 488, 539, 574, 616, 656, 671, 784, 854, 902, 976, 1078, 1148, 1232, 1342, 1708, 1804, 2009, 2156, 2296, 2501, 2684, 2989, 3157, 3416, 3608, 4018, 4312, 4592, 4697, 5002, 5368, 5978, 6314, 6832, 7216, 8036, 8624, 9394, 10004, 10736, 11956, 12628, 16072, 17507, 18788, 20008, 22099, 23912, 25256, 27511, 32144, 32879, 35014, 37576, 40016, 44198, 47824, 50512, 55022, 65758, 70028, 75152, 88396, 110044, 122549, 131516, 140056, 176792, 192577, 220088, 245098, 263032, 280112, 353584, 385154, 440176, 490196, 526064, 770308, 980392, 1348039, 1540616, 1960784, 2696078, 3081232, 5392156, 10784312, 21568624]

約数ペア:

[(1, 21568624), (2, 10784312), (4, 5392156), (7, 3081232), (8, 2696078), (11, 1960784), (14, 1540616), (16, 1348039), (22, 980392), (28, 770308), (41, 526064), (44, 490196), (49, 440176), (56, 385154), (61, 353584), (77, 280112), (82, 263032), (88, 245098), (98, 220088), (112, 192577), (122, 176792), (154, 140056), (164, 131516), (176, 122549), (196, 110044), (244, 88396), (287, 75152), (308, 70028), (328, 65758), (392, 55022), (427, 50512), (451, 47824), (488, 44198), (539, 40016), (574, 37576), (616, 35014), (656, 32879), (671, 32144), (784, 27511), (854, 25256), (902, 23912), (976, 22099), (1078, 20008), (1148, 18788), (1232, 17507), (1342, 16072), (1708, 12628), (1804, 11956), (2009, 10736), (2156, 10004), (2296, 9394), (2501, 8624), (2684, 8036), (2989, 7216), (3157, 6832), (3416, 6314), (3608, 5978), (4018, 5368), (4312, 5002), (4592, 4697)]