21921060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:146

約数の個数: 192

約数和(自身を含む): 76769280

約数和(自身を除く): 54848220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 41, 42, 57, 60, 67, 70, 76, 82, 84, 95, 105, 114, 123, 133, 134, 140, 164, 190, 201, 205, 210, 228, 246, 266, 268, 285, 287, 335, 380, 399, 402, 410, 420, 469, 492, 532, 570, 574, 615, 665, 670, 779, 798, 804, 820, 861, 938, 1005, 1140, 1148, 1230, 1273, 1330, 1340, 1407, 1435, 1558, 1596, 1722, 1876, 1995, 2010, 2337, 2345, 2460, 2546, 2660, 2747, 2814, 2870, 3116, 3444, 3819, 3895, 3990, 4020, 4305, 4674, 4690, 5092, 5453, 5494, 5628, 5740, 6365, 7035, 7638, 7790, 7980, 8241, 8610, 8911, 9348, 9380, 10906, 10988, 11685, 12730, 13735, 14070, 15276, 15580, 16359, 16482, 17220, 17822, 19095, 19229, 21812, 23370, 25460, 26733, 27265, 27470, 28140, 32718, 32964, 35644, 38190, 38458, 41205, 44555, 46740, 52193, 53466, 54530, 54940, 57687, 65436, 76380, 76916, 81795, 82410, 89110, 96145, 104386, 106932, 109060, 115374, 133665, 156579, 163590, 164820, 178220, 192290, 208772, 230748, 260965, 267330, 288435, 313158, 327180, 365351, 384580, 521930, 534660, 576870, 626316, 730702, 782895, 1043860, 1096053, 1153740, 1461404, 1565790, 1826755, 2192106, 3131580, 3653510, 4384212, 5480265, 7307020, 10960530, 21921060]

約数ペア:

[(1, 21921060), (2, 10960530), (3, 7307020), (4, 5480265), (5, 4384212), (6, 3653510), (7, 3131580), (10, 2192106), (12, 1826755), (14, 1565790), (15, 1461404), (19, 1153740), (20, 1096053), (21, 1043860), (28, 782895), (30, 730702), (35, 626316), (38, 576870), (41, 534660), (42, 521930), (57, 384580), (60, 365351), (67, 327180), (70, 313158), (76, 288435), (82, 267330), (84, 260965), (95, 230748), (105, 208772), (114, 192290), (123, 178220), (133, 164820), (134, 163590), (140, 156579), (164, 133665), (190, 115374), (201, 109060), (205, 106932), (210, 104386), (228, 96145), (246, 89110), (266, 82410), (268, 81795), (285, 76916), (287, 76380), (335, 65436), (380, 57687), (399, 54940), (402, 54530), (410, 53466), (420, 52193), (469, 46740), (492, 44555), (532, 41205), (570, 38458), (574, 38190), (615, 35644), (665, 32964), (670, 32718), (779, 28140), (798, 27470), (804, 27265), (820, 26733), (861, 25460), (938, 23370), (1005, 21812), (1140, 19229), (1148, 19095), (1230, 17822), (1273, 17220), (1330, 16482), (1340, 16359), (1407, 15580), (1435, 15276), (1558, 14070), (1596, 13735), (1722, 12730), (1876, 11685), (1995, 10988), (2010, 10906), (2337, 9380), (2345, 9348), (2460, 8911), (2546, 8610), (2660, 8241), (2747, 7980), (2814, 7790), (2870, 7638), (3116, 7035), (3444, 6365), (3819, 5740), (3895, 5628), (3990, 5494), (4020, 5453), (4305, 5092), (4674, 4690)]