18563748

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 50982624

約数和(自身を除く): 32418876

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 131, 147, 196, 241, 262, 294, 393, 482, 524, 588, 723, 786, 917, 964, 1446, 1572, 1687, 1834, 2751, 2892, 3374, 3668, 5061, 5502, 6419, 6748, 10122, 11004, 11809, 12838, 19257, 20244, 23618, 25676, 31571, 35427, 38514, 47236, 63142, 70854, 77028, 94713, 126284, 141708, 189426, 220997, 378852, 441994, 662991, 883988, 1325982, 1546979, 2651964, 3093958, 4640937, 6187916, 9281874, 18563748]

約数ペア:

[(1, 18563748), (2, 9281874), (3, 6187916), (4, 4640937), (6, 3093958), (7, 2651964), (12, 1546979), (14, 1325982), (21, 883988), (28, 662991), (42, 441994), (49, 378852), (84, 220997), (98, 189426), (131, 141708), (147, 126284), (196, 94713), (241, 77028), (262, 70854), (294, 63142), (393, 47236), (482, 38514), (524, 35427), (588, 31571), (723, 25676), (786, 23618), (917, 20244), (964, 19257), (1446, 12838), (1572, 11809), (1687, 11004), (1834, 10122), (2751, 6748), (2892, 6419), (3374, 5502), (3668, 5061)]