18820872

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:475

約数の個数: 96

約数和(自身を含む): 58968000

約数和(自身を除く): 40147128

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 107, 126, 168, 214, 252, 321, 349, 428, 504, 642, 698, 749, 856, 963, 1047, 1284, 1396, 1498, 1926, 2094, 2247, 2443, 2568, 2792, 2996, 3141, 3852, 4188, 4494, 4886, 5992, 6282, 6741, 7329, 7704, 8376, 8988, 9772, 12564, 13482, 14658, 17976, 19544, 21987, 25128, 26964, 29316, 37343, 43974, 53928, 58632, 74686, 87948, 112029, 149372, 175896, 224058, 261401, 298744, 336087, 448116, 522802, 672174, 784203, 896232, 1045604, 1344348, 1568406, 2091208, 2352609, 2688696, 3136812, 4705218, 6273624, 9410436, 18820872]

約数ペア:

[(1, 18820872), (2, 9410436), (3, 6273624), (4, 4705218), (6, 3136812), (7, 2688696), (8, 2352609), (9, 2091208), (12, 1568406), (14, 1344348), (18, 1045604), (21, 896232), (24, 784203), (28, 672174), (36, 522802), (42, 448116), (56, 336087), (63, 298744), (72, 261401), (84, 224058), (107, 175896), (126, 149372), (168, 112029), (214, 87948), (252, 74686), (321, 58632), (349, 53928), (428, 43974), (504, 37343), (642, 29316), (698, 26964), (749, 25128), (856, 21987), (963, 19544), (1047, 17976), (1284, 14658), (1396, 13482), (1498, 12564), (1926, 9772), (2094, 8988), (2247, 8376), (2443, 7704), (2568, 7329), (2792, 6741), (2996, 6282), (3141, 5992), (3852, 4886), (4188, 4494)]