19861785

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 36042240

約数和(自身を除く): 16180455

約数列:

[1, 3, 5, 9, 15, 37, 45, 79, 111, 151, 185, 237, 333, 395, 453, 555, 711, 755, 1185, 1359, 1665, 2265, 2923, 3555, 5587, 6795, 8769, 11929, 14615, 16761, 26307, 27935, 35787, 43845, 50283, 59645, 83805, 107361, 131535, 178935, 251415, 441373, 536805, 1324119, 2206865, 3972357, 6620595, 19861785]

約数ペア:

[(1, 19861785), (3, 6620595), (5, 3972357), (9, 2206865), (15, 1324119), (37, 536805), (45, 441373), (79, 251415), (111, 178935), (151, 131535), (185, 107361), (237, 83805), (333, 59645), (395, 50283), (453, 43845), (555, 35787), (711, 27935), (755, 26307), (1185, 16761), (1359, 14615), (1665, 11929), (2265, 8769), (2923, 6795), (3555, 5587)]