21372032

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:421

約数の個数: 64

約数和(自身を含む): 47662560

約数和(自身を除く): 26290528

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 64, 86, 88, 128, 172, 176, 344, 352, 353, 473, 688, 704, 706, 946, 1376, 1408, 1412, 1892, 2752, 2824, 3784, 3883, 5504, 5648, 7568, 7766, 11296, 15136, 15179, 15532, 22592, 30272, 30358, 31064, 45184, 60544, 60716, 62128, 121432, 124256, 166969, 242864, 248512, 333938, 485728, 497024, 667876, 971456, 1335752, 1942912, 2671504, 5343008, 10686016, 21372032]

約数ペア:

[(1, 21372032), (2, 10686016), (4, 5343008), (8, 2671504), (11, 1942912), (16, 1335752), (22, 971456), (32, 667876), (43, 497024), (44, 485728), (64, 333938), (86, 248512), (88, 242864), (128, 166969), (172, 124256), (176, 121432), (344, 62128), (352, 60716), (353, 60544), (473, 45184), (688, 31064), (704, 30358), (706, 30272), (946, 22592), (1376, 15532), (1408, 15179), (1412, 15136), (1892, 11296), (2752, 7766), (2824, 7568), (3784, 5648), (3883, 5504)]