21041104

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:332

約数の個数: 80

約数和(自身を含む): 50675328

約数和(自身を除く): 29634224

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 43, 56, 68, 86, 112, 119, 136, 172, 238, 257, 272, 301, 344, 476, 514, 602, 688, 731, 952, 1028, 1204, 1462, 1799, 1904, 2056, 2408, 2924, 3598, 4112, 4369, 4816, 5117, 5848, 7196, 8738, 10234, 11051, 11696, 14392, 17476, 20468, 22102, 28784, 30583, 34952, 40936, 44204, 61166, 69904, 77357, 81872, 88408, 122332, 154714, 176816, 187867, 244664, 309428, 375734, 489328, 618856, 751468, 1237712, 1315069, 1502936, 2630138, 3005872, 5260276, 10520552, 21041104]

約数ペア:

[(1, 21041104), (2, 10520552), (4, 5260276), (7, 3005872), (8, 2630138), (14, 1502936), (16, 1315069), (17, 1237712), (28, 751468), (34, 618856), (43, 489328), (56, 375734), (68, 309428), (86, 244664), (112, 187867), (119, 176816), (136, 154714), (172, 122332), (238, 88408), (257, 81872), (272, 77357), (301, 69904), (344, 61166), (476, 44204), (514, 40936), (602, 34952), (688, 30583), (731, 28784), (952, 22102), (1028, 20468), (1204, 17476), (1462, 14392), (1799, 11696), (1904, 11051), (2056, 10234), (2408, 8738), (2924, 7196), (3598, 5848), (4112, 5117), (4369, 4816)]