21056760

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:187

約数の個数: 160

約数和(自身を含む): 72570960

約数和(自身を除く): 51514200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 67, 72, 81, 90, 97, 108, 120, 134, 135, 162, 180, 194, 201, 216, 268, 270, 291, 324, 335, 360, 388, 402, 405, 485, 536, 540, 582, 603, 648, 670, 776, 804, 810, 873, 970, 1005, 1080, 1164, 1206, 1340, 1455, 1608, 1620, 1746, 1809, 1940, 2010, 2328, 2412, 2619, 2680, 2910, 3015, 3240, 3492, 3618, 3880, 4020, 4365, 4824, 5238, 5427, 5820, 6030, 6499, 6984, 7236, 7857, 8040, 8730, 9045, 10476, 10854, 11640, 12060, 12998, 13095, 14472, 15714, 17460, 18090, 19497, 20952, 21708, 24120, 25996, 26190, 27135, 31428, 32495, 34920, 36180, 38994, 39285, 43416, 51992, 52380, 54270, 58491, 62856, 64990, 72360, 77988, 78570, 97485, 104760, 108540, 116982, 129980, 155976, 157140, 175473, 194970, 217080, 233964, 259960, 292455, 314280, 350946, 389940, 467928, 526419, 584910, 701892, 779880, 877365, 1052838, 1169820, 1403784, 1754730, 2105676, 2339640, 2632095, 3509460, 4211352, 5264190, 7018920, 10528380, 21056760]

約数ペア:

[(1, 21056760), (2, 10528380), (3, 7018920), (4, 5264190), (5, 4211352), (6, 3509460), (8, 2632095), (9, 2339640), (10, 2105676), (12, 1754730), (15, 1403784), (18, 1169820), (20, 1052838), (24, 877365), (27, 779880), (30, 701892), (36, 584910), (40, 526419), (45, 467928), (54, 389940), (60, 350946), (67, 314280), (72, 292455), (81, 259960), (90, 233964), (97, 217080), (108, 194970), (120, 175473), (134, 157140), (135, 155976), (162, 129980), (180, 116982), (194, 108540), (201, 104760), (216, 97485), (268, 78570), (270, 77988), (291, 72360), (324, 64990), (335, 62856), (360, 58491), (388, 54270), (402, 52380), (405, 51992), (485, 43416), (536, 39285), (540, 38994), (582, 36180), (603, 34920), (648, 32495), (670, 31428), (776, 27135), (804, 26190), (810, 25996), (873, 24120), (970, 21708), (1005, 20952), (1080, 19497), (1164, 18090), (1206, 17460), (1340, 15714), (1455, 14472), (1608, 13095), (1620, 12998), (1746, 12060), (1809, 11640), (1940, 10854), (2010, 10476), (2328, 9045), (2412, 8730), (2619, 8040), (2680, 7857), (2910, 7236), (3015, 6984), (3240, 6499), (3492, 6030), (3618, 5820), (3880, 5427), (4020, 5238), (4365, 4824)]