20915496

素因数分解:

$2^3\times 3^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:110

約数の個数: 192

約数和(自身を含む): 70761600

約数和(自身を除く): 49846104

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 29, 36, 42, 53, 54, 56, 58, 63, 72, 81, 84, 87, 106, 108, 116, 126, 159, 162, 168, 174, 189, 203, 212, 216, 232, 243, 252, 261, 318, 324, 348, 371, 378, 406, 424, 477, 486, 504, 522, 567, 609, 636, 648, 696, 742, 756, 783, 812, 954, 972, 1044, 1113, 1134, 1218, 1272, 1431, 1484, 1512, 1537, 1566, 1624, 1701, 1827, 1908, 1944, 2088, 2226, 2268, 2349, 2436, 2862, 2968, 3074, 3132, 3339, 3402, 3654, 3816, 4293, 4452, 4536, 4611, 4698, 4872, 5481, 5724, 6148, 6264, 6678, 6804, 7047, 7308, 8586, 8904, 9222, 9396, 10017, 10759, 10962, 11448, 12296, 12879, 13356, 13608, 13833, 14094, 14616, 16443, 17172, 18444, 18792, 20034, 21518, 21924, 25758, 26712, 27666, 28188, 30051, 32277, 32886, 34344, 36888, 40068, 41499, 43036, 43848, 49329, 51516, 55332, 56376, 60102, 64554, 65772, 80136, 82998, 86072, 90153, 96831, 98658, 103032, 110664, 120204, 124497, 129108, 131544, 165996, 180306, 193662, 197316, 240408, 248994, 258216, 290493, 331992, 360612, 373491, 387324, 394632, 497988, 580986, 721224, 746982, 774648, 871479, 995976, 1161972, 1493964, 1742958, 2323944, 2614437, 2987928, 3485916, 5228874, 6971832, 10457748, 20915496]

約数ペア:

[(1, 20915496), (2, 10457748), (3, 6971832), (4, 5228874), (6, 3485916), (7, 2987928), (8, 2614437), (9, 2323944), (12, 1742958), (14, 1493964), (18, 1161972), (21, 995976), (24, 871479), (27, 774648), (28, 746982), (29, 721224), (36, 580986), (42, 497988), (53, 394632), (54, 387324), (56, 373491), (58, 360612), (63, 331992), (72, 290493), (81, 258216), (84, 248994), (87, 240408), (106, 197316), (108, 193662), (116, 180306), (126, 165996), (159, 131544), (162, 129108), (168, 124497), (174, 120204), (189, 110664), (203, 103032), (212, 98658), (216, 96831), (232, 90153), (243, 86072), (252, 82998), (261, 80136), (318, 65772), (324, 64554), (348, 60102), (371, 56376), (378, 55332), (406, 51516), (424, 49329), (477, 43848), (486, 43036), (504, 41499), (522, 40068), (567, 36888), (609, 34344), (636, 32886), (648, 32277), (696, 30051), (742, 28188), (756, 27666), (783, 26712), (812, 25758), (954, 21924), (972, 21518), (1044, 20034), (1113, 18792), (1134, 18444), (1218, 17172), (1272, 16443), (1431, 14616), (1484, 14094), (1512, 13833), (1537, 13608), (1566, 13356), (1624, 12879), (1701, 12296), (1827, 11448), (1908, 10962), (1944, 10759), (2088, 10017), (2226, 9396), (2268, 9222), (2349, 8904), (2436, 8586), (2862, 7308), (2968, 7047), (3074, 6804), (3132, 6678), (3339, 6264), (3402, 6148), (3654, 5724), (3816, 5481), (4293, 4872), (4452, 4698), (4536, 4611)]