19450431

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:181

約数の個数: 96

約数和(自身を含む): 40255488

約数和(自身を除く): 20805057

約数列:

[1, 3, 7, 9, 11, 13, 17, 21, 33, 39, 51, 63, 77, 91, 99, 117, 119, 127, 143, 153, 187, 221, 231, 273, 357, 381, 429, 561, 663, 693, 819, 889, 1001, 1071, 1143, 1287, 1309, 1397, 1547, 1651, 1683, 1989, 2159, 2431, 2667, 3003, 3927, 4191, 4641, 4953, 6477, 7293, 8001, 9009, 9779, 11557, 11781, 12573, 13923, 14859, 15113, 17017, 18161, 19431, 21879, 23749, 28067, 29337, 34671, 45339, 51051, 54483, 71247, 84201, 88011, 104013, 127127, 136017, 153153, 163449, 166243, 196469, 213741, 252603, 308737, 381381, 498729, 589407, 926211, 1144143, 1496187, 1768221, 2161159, 2778633, 6483477, 19450431]

約数ペア:

[(1, 19450431), (3, 6483477), (7, 2778633), (9, 2161159), (11, 1768221), (13, 1496187), (17, 1144143), (21, 926211), (33, 589407), (39, 498729), (51, 381381), (63, 308737), (77, 252603), (91, 213741), (99, 196469), (117, 166243), (119, 163449), (127, 153153), (143, 136017), (153, 127127), (187, 104013), (221, 88011), (231, 84201), (273, 71247), (357, 54483), (381, 51051), (429, 45339), (561, 34671), (663, 29337), (693, 28067), (819, 23749), (889, 21879), (1001, 19431), (1071, 18161), (1143, 17017), (1287, 15113), (1309, 14859), (1397, 13923), (1547, 12573), (1651, 11781), (1683, 11557), (1989, 9779), (2159, 9009), (2431, 8001), (2667, 7293), (3003, 6477), (3927, 4953), (4191, 4641)]