21591296

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:251

約数の個数: 72

約数和(自身を含む): 47584320

約数和(自身を除く): 25993024

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 128, 152, 184, 193, 256, 304, 368, 386, 437, 608, 736, 772, 874, 1216, 1472, 1544, 1748, 2432, 2944, 3088, 3496, 3667, 4439, 4864, 5888, 6176, 6992, 7334, 8878, 12352, 13984, 14668, 17756, 24704, 27968, 29336, 35512, 49408, 55936, 58672, 71024, 84341, 111872, 117344, 142048, 168682, 234688, 284096, 337364, 469376, 568192, 674728, 938752, 1136384, 1349456, 2698912, 5397824, 10795648, 21591296]

約数ペア:

[(1, 21591296), (2, 10795648), (4, 5397824), (8, 2698912), (16, 1349456), (19, 1136384), (23, 938752), (32, 674728), (38, 568192), (46, 469376), (64, 337364), (76, 284096), (92, 234688), (128, 168682), (152, 142048), (184, 117344), (193, 111872), (256, 84341), (304, 71024), (368, 58672), (386, 55936), (437, 49408), (608, 35512), (736, 29336), (772, 27968), (874, 24704), (1216, 17756), (1472, 14668), (1544, 13984), (1748, 12352), (2432, 8878), (2944, 7334), (3088, 6992), (3496, 6176), (3667, 5888), (4439, 4864)]