20501145

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1759}}^1$

素因数の和:1814

約数の個数: 48

約数和(自身を含む): 41733120

約数和(自身を除く): 21231975

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 45, 63, 105, 111, 185, 259, 315, 333, 555, 777, 1295, 1665, 1759, 2331, 3885, 5277, 8795, 11655, 12313, 15831, 26385, 36939, 61565, 65083, 79155, 110817, 184695, 195249, 325415, 455581, 554085, 585747, 976245, 1366743, 2277905, 2928735, 4100229, 6833715, 20501145]

約数ペア:

[(1, 20501145), (3, 6833715), (5, 4100229), (7, 2928735), (9, 2277905), (15, 1366743), (21, 976245), (35, 585747), (37, 554085), (45, 455581), (63, 325415), (105, 195249), (111, 184695), (185, 110817), (259, 79155), (315, 65083), (333, 61565), (555, 36939), (777, 26385), (1295, 15831), (1665, 12313), (1759, 11655), (2331, 8795), (3885, 5277)]