21731168

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{929}}^1$

素因数の和:999

約数の個数: 48

約数和(自身を含む): 46403280

約数和(自身を除く): 24672112

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 43, 68, 86, 136, 172, 272, 344, 544, 688, 731, 929, 1376, 1462, 1858, 2924, 3716, 5848, 7432, 11696, 14864, 15793, 23392, 29728, 31586, 39947, 63172, 79894, 126344, 159788, 252688, 319576, 505376, 639152, 679099, 1278304, 1358198, 2716396, 5432792, 10865584, 21731168]

約数ペア:

[(1, 21731168), (2, 10865584), (4, 5432792), (8, 2716396), (16, 1358198), (17, 1278304), (32, 679099), (34, 639152), (43, 505376), (68, 319576), (86, 252688), (136, 159788), (172, 126344), (272, 79894), (344, 63172), (544, 39947), (688, 31586), (731, 29728), (929, 23392), (1376, 15793), (1462, 14864), (1858, 11696), (2924, 7432), (3716, 5848)]