20979576

素因数分解:

$2^3\times 3^2\times {\mathrm{67}}^1\times {\mathrm{4349}}^1$

素因数の和:4428

約数の個数: 48

約数和(自身を含む): 57681000

約数和(自身を除く): 36701424

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 67, 72, 134, 201, 268, 402, 536, 603, 804, 1206, 1608, 2412, 4349, 4824, 8698, 13047, 17396, 26094, 34792, 39141, 52188, 78282, 104376, 156564, 291383, 313128, 582766, 874149, 1165532, 1748298, 2331064, 2622447, 3496596, 5244894, 6993192, 10489788, 20979576]

約数ペア:

[(1, 20979576), (2, 10489788), (3, 6993192), (4, 5244894), (6, 3496596), (8, 2622447), (9, 2331064), (12, 1748298), (18, 1165532), (24, 874149), (36, 582766), (67, 313128), (72, 291383), (134, 156564), (201, 104376), (268, 78282), (402, 52188), (536, 39141), (603, 34792), (804, 26094), (1206, 17396), (1608, 13047), (2412, 8698), (4349, 4824)]