20581848

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{421}}^1$

素因数の和:537

約数の個数: 96

約数和(自身を含む): 64515360

約数和(自身を除く): 43933512

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 97, 126, 168, 194, 252, 291, 388, 421, 504, 582, 679, 776, 842, 873, 1164, 1263, 1358, 1684, 1746, 2037, 2328, 2526, 2716, 2947, 3368, 3492, 3789, 4074, 5052, 5432, 5894, 6111, 6984, 7578, 8148, 8841, 10104, 11788, 12222, 15156, 16296, 17682, 23576, 24444, 26523, 30312, 35364, 40837, 48888, 53046, 70728, 81674, 106092, 122511, 163348, 212184, 245022, 285859, 326696, 367533, 490044, 571718, 735066, 857577, 980088, 1143436, 1470132, 1715154, 2286872, 2572731, 2940264, 3430308, 5145462, 6860616, 10290924, 20581848]

約数ペア:

[(1, 20581848), (2, 10290924), (3, 6860616), (4, 5145462), (6, 3430308), (7, 2940264), (8, 2572731), (9, 2286872), (12, 1715154), (14, 1470132), (18, 1143436), (21, 980088), (24, 857577), (28, 735066), (36, 571718), (42, 490044), (56, 367533), (63, 326696), (72, 285859), (84, 245022), (97, 212184), (126, 163348), (168, 122511), (194, 106092), (252, 81674), (291, 70728), (388, 53046), (421, 48888), (504, 40837), (582, 35364), (679, 30312), (776, 26523), (842, 24444), (873, 23576), (1164, 17682), (1263, 16296), (1358, 15156), (1684, 12222), (1746, 11788), (2037, 10104), (2328, 8841), (2526, 8148), (2716, 7578), (2947, 6984), (3368, 6111), (3492, 5894), (3789, 5432), (4074, 5052)]