19610451

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 36044800

約数和(自身を除く): 16434349

約数列:

[1, 3, 7, 9, 19, 21, 27, 43, 57, 63, 127, 129, 133, 171, 189, 301, 381, 387, 399, 513, 817, 889, 903, 1143, 1161, 1197, 2413, 2451, 2667, 2709, 3429, 3591, 5461, 5719, 7239, 7353, 8001, 8127, 16383, 16891, 17157, 21717, 22059, 24003, 38227, 49149, 50673, 51471, 65151, 103759, 114681, 147447, 152019, 154413, 311277, 344043, 456057, 726313, 933831, 1032129, 2178939, 2801493, 6536817, 19610451]

約数ペア:

[(1, 19610451), (3, 6536817), (7, 2801493), (9, 2178939), (19, 1032129), (21, 933831), (27, 726313), (43, 456057), (57, 344043), (63, 311277), (127, 154413), (129, 152019), (133, 147447), (171, 114681), (189, 103759), (301, 65151), (381, 51471), (387, 50673), (399, 49149), (513, 38227), (817, 24003), (889, 22059), (903, 21717), (1143, 17157), (1161, 16891), (1197, 16383), (2413, 8127), (2451, 8001), (2667, 7353), (2709, 7239), (3429, 5719), (3591, 5461)]