21418992

素因数分解:

$2^4\times 3^5\times 7^1\times {\mathrm{787}}^1$

素因数の和:817

約数の個数: 120

約数和(自身を含む): 71134336

約数和(自身を除く): 49715344

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 81, 84, 108, 112, 126, 144, 162, 168, 189, 216, 243, 252, 324, 336, 378, 432, 486, 504, 567, 648, 756, 787, 972, 1008, 1134, 1296, 1512, 1574, 1701, 1944, 2268, 2361, 3024, 3148, 3402, 3888, 4536, 4722, 5509, 6296, 6804, 7083, 9072, 9444, 11018, 12592, 13608, 14166, 16527, 18888, 21249, 22036, 27216, 28332, 33054, 37776, 42498, 44072, 49581, 56664, 63747, 66108, 84996, 88144, 99162, 113328, 127494, 132216, 148743, 169992, 191241, 198324, 254988, 264432, 297486, 339984, 382482, 396648, 446229, 509976, 594972, 764964, 793296, 892458, 1019952, 1189944, 1338687, 1529928, 1784916, 2379888, 2677374, 3059856, 3569832, 5354748, 7139664, 10709496, 21418992]

約数ペア:

[(1, 21418992), (2, 10709496), (3, 7139664), (4, 5354748), (6, 3569832), (7, 3059856), (8, 2677374), (9, 2379888), (12, 1784916), (14, 1529928), (16, 1338687), (18, 1189944), (21, 1019952), (24, 892458), (27, 793296), (28, 764964), (36, 594972), (42, 509976), (48, 446229), (54, 396648), (56, 382482), (63, 339984), (72, 297486), (81, 264432), (84, 254988), (108, 198324), (112, 191241), (126, 169992), (144, 148743), (162, 132216), (168, 127494), (189, 113328), (216, 99162), (243, 88144), (252, 84996), (324, 66108), (336, 63747), (378, 56664), (432, 49581), (486, 44072), (504, 42498), (567, 37776), (648, 33054), (756, 28332), (787, 27216), (972, 22036), (1008, 21249), (1134, 18888), (1296, 16527), (1512, 14166), (1574, 13608), (1701, 12592), (1944, 11018), (2268, 9444), (2361, 9072), (3024, 7083), (3148, 6804), (3402, 6296), (3888, 5509), (4536, 4722)]