20194713

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:235

約数の個数: 72

約数和(自身を含む): 38840256

約数和(自身を除く): 18645543

約数列:

[1, 3, 7, 9, 11, 21, 23, 33, 49, 63, 69, 77, 99, 147, 161, 181, 207, 231, 253, 441, 483, 539, 543, 693, 759, 1127, 1267, 1449, 1617, 1629, 1771, 1991, 2277, 3381, 3801, 4163, 4851, 5313, 5973, 8869, 10143, 11403, 12397, 12489, 13937, 15939, 17919, 26607, 29141, 37191, 37467, 41811, 45793, 79821, 87423, 97559, 111573, 125433, 137379, 203987, 262269, 292677, 320551, 412137, 611961, 878031, 961653, 1835883, 2243857, 2884959, 6731571, 20194713]

約数ペア:

[(1, 20194713), (3, 6731571), (7, 2884959), (9, 2243857), (11, 1835883), (21, 961653), (23, 878031), (33, 611961), (49, 412137), (63, 320551), (69, 292677), (77, 262269), (99, 203987), (147, 137379), (161, 125433), (181, 111573), (207, 97559), (231, 87423), (253, 79821), (441, 45793), (483, 41811), (539, 37467), (543, 37191), (693, 29141), (759, 26607), (1127, 17919), (1267, 15939), (1449, 13937), (1617, 12489), (1629, 12397), (1771, 11403), (1991, 10143), (2277, 8869), (3381, 5973), (3801, 5313), (4163, 4851)]