21380288

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:529

約数の個数: 56

約数和(自身を含む): 46067472

約数和(自身を除く): 24687184

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 64, 68, 86, 136, 172, 272, 344, 457, 544, 688, 731, 914, 1088, 1376, 1462, 1828, 2752, 2924, 3656, 5848, 7312, 7769, 11696, 14624, 15538, 19651, 23392, 29248, 31076, 39302, 46784, 62152, 78604, 124304, 157208, 248608, 314416, 334067, 497216, 628832, 668134, 1257664, 1336268, 2672536, 5345072, 10690144, 21380288]

約数ペア:

[(1, 21380288), (2, 10690144), (4, 5345072), (8, 2672536), (16, 1336268), (17, 1257664), (32, 668134), (34, 628832), (43, 497216), (64, 334067), (68, 314416), (86, 248608), (136, 157208), (172, 124304), (272, 78604), (344, 62152), (457, 46784), (544, 39302), (688, 31076), (731, 29248), (914, 23392), (1088, 19651), (1376, 15538), (1462, 14624), (1828, 11696), (2752, 7769), (2924, 7312), (3656, 5848)]