21219352

素因数分解:

$2^3\times 7^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:94

約数の個数: 128

約数和(自身を含む): 54720000

約数和(自身を除く): 33500648

約数列:

[1, 2, 4, 7, 8, 11, 14, 19, 22, 28, 37, 38, 44, 49, 56, 74, 76, 77, 88, 98, 133, 148, 152, 154, 196, 209, 259, 266, 296, 308, 343, 392, 407, 418, 518, 532, 539, 616, 686, 703, 814, 836, 931, 1036, 1064, 1078, 1372, 1406, 1463, 1628, 1672, 1813, 1862, 2072, 2156, 2744, 2812, 2849, 2926, 3256, 3626, 3724, 3773, 4312, 4921, 5624, 5698, 5852, 6517, 7252, 7448, 7546, 7733, 9842, 10241, 11396, 11704, 12691, 13034, 14504, 15092, 15466, 19684, 19943, 20482, 22792, 25382, 26068, 30184, 30932, 34447, 39368, 39886, 40964, 50764, 52136, 54131, 61864, 68894, 71687, 79772, 81928, 101528, 108262, 137788, 139601, 143374, 159544, 216524, 241129, 275576, 279202, 286748, 378917, 433048, 482258, 558404, 573496, 757834, 964516, 1116808, 1515668, 1929032, 2652419, 3031336, 5304838, 10609676, 21219352]

約数ペア:

[(1, 21219352), (2, 10609676), (4, 5304838), (7, 3031336), (8, 2652419), (11, 1929032), (14, 1515668), (19, 1116808), (22, 964516), (28, 757834), (37, 573496), (38, 558404), (44, 482258), (49, 433048), (56, 378917), (74, 286748), (76, 279202), (77, 275576), (88, 241129), (98, 216524), (133, 159544), (148, 143374), (152, 139601), (154, 137788), (196, 108262), (209, 101528), (259, 81928), (266, 79772), (296, 71687), (308, 68894), (343, 61864), (392, 54131), (407, 52136), (418, 50764), (518, 40964), (532, 39886), (539, 39368), (616, 34447), (686, 30932), (703, 30184), (814, 26068), (836, 25382), (931, 22792), (1036, 20482), (1064, 19943), (1078, 19684), (1372, 15466), (1406, 15092), (1463, 14504), (1628, 13034), (1672, 12691), (1813, 11704), (1862, 11396), (2072, 10241), (2156, 9842), (2744, 7733), (2812, 7546), (2849, 7448), (2926, 7252), (3256, 6517), (3626, 5852), (3724, 5698), (3773, 5624), (4312, 4921)]