17993388

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:523

約数の個数: 72

約数和(自身を含む): 49641984

約数和(自身を除く): 31648596

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 71, 84, 98, 142, 147, 196, 213, 284, 294, 426, 431, 497, 588, 852, 862, 994, 1293, 1491, 1724, 1988, 2586, 2982, 3017, 3479, 5172, 5964, 6034, 6958, 9051, 10437, 12068, 13916, 18102, 20874, 21119, 30601, 36204, 41748, 42238, 61202, 63357, 84476, 91803, 122404, 126714, 183606, 214207, 253428, 367212, 428414, 642621, 856828, 1285242, 1499449, 2570484, 2998898, 4498347, 5997796, 8996694, 17993388]

約数ペア:

[(1, 17993388), (2, 8996694), (3, 5997796), (4, 4498347), (6, 2998898), (7, 2570484), (12, 1499449), (14, 1285242), (21, 856828), (28, 642621), (42, 428414), (49, 367212), (71, 253428), (84, 214207), (98, 183606), (142, 126714), (147, 122404), (196, 91803), (213, 84476), (284, 63357), (294, 61202), (426, 42238), (431, 41748), (497, 36204), (588, 30601), (852, 21119), (862, 20874), (994, 18102), (1293, 13916), (1491, 12068), (1724, 10437), (1988, 9051), (2586, 6958), (2982, 6034), (3017, 5964), (3479, 5172)]