15905988

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:222

約数の個数: 108

約数和(自身を含む): 47803392

約数和(自身を除く): 31897404

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 71, 84, 98, 126, 127, 142, 147, 196, 213, 252, 254, 284, 294, 381, 426, 441, 497, 508, 588, 639, 762, 852, 882, 889, 994, 1143, 1278, 1491, 1524, 1764, 1778, 1988, 2286, 2556, 2667, 2982, 3479, 3556, 4473, 4572, 5334, 5964, 6223, 6958, 8001, 8946, 9017, 10437, 10668, 12446, 13916, 16002, 17892, 18034, 18669, 20874, 24892, 27051, 31311, 32004, 36068, 37338, 41748, 54102, 56007, 62622, 63119, 74676, 81153, 108204, 112014, 125244, 126238, 162306, 189357, 224028, 252476, 324612, 378714, 441833, 568071, 757428, 883666, 1136142, 1325499, 1767332, 2272284, 2650998, 3976497, 5301996, 7952994, 15905988]

約数ペア:

[(1, 15905988), (2, 7952994), (3, 5301996), (4, 3976497), (6, 2650998), (7, 2272284), (9, 1767332), (12, 1325499), (14, 1136142), (18, 883666), (21, 757428), (28, 568071), (36, 441833), (42, 378714), (49, 324612), (63, 252476), (71, 224028), (84, 189357), (98, 162306), (126, 126238), (127, 125244), (142, 112014), (147, 108204), (196, 81153), (213, 74676), (252, 63119), (254, 62622), (284, 56007), (294, 54102), (381, 41748), (426, 37338), (441, 36068), (497, 32004), (508, 31311), (588, 27051), (639, 24892), (762, 20874), (852, 18669), (882, 18034), (889, 17892), (994, 16002), (1143, 13916), (1278, 12446), (1491, 10668), (1524, 10437), (1764, 9017), (1778, 8946), (1988, 8001), (2286, 6958), (2556, 6223), (2667, 5964), (2982, 5334), (3479, 4572), (3556, 4473)]