20548143

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 37440000

約数和(自身を除く): 16891857

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 149, 199, 231, 447, 597, 693, 1043, 1341, 1393, 1639, 1791, 2189, 3129, 4179, 4917, 6567, 9387, 11473, 12537, 14751, 15323, 19701, 29651, 34419, 45969, 88953, 103257, 137907, 207557, 266859, 326161, 622671, 978483, 1868013, 2283127, 2935449, 6849381, 20548143]

約数ペア:

[(1, 20548143), (3, 6849381), (7, 2935449), (9, 2283127), (11, 1868013), (21, 978483), (33, 622671), (63, 326161), (77, 266859), (99, 207557), (149, 137907), (199, 103257), (231, 88953), (447, 45969), (597, 34419), (693, 29651), (1043, 19701), (1341, 15323), (1393, 14751), (1639, 12537), (1791, 11473), (2189, 9387), (3129, 6567), (4179, 4917)]