9987957

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 17641728

約数和(自身を除く): 7653771

約数列:

[1, 3, 7, 9, 21, 23, 61, 63, 69, 113, 161, 183, 207, 339, 427, 483, 549, 791, 1017, 1281, 1403, 1449, 2373, 2599, 3843, 4209, 6893, 7119, 7797, 9821, 12627, 18193, 20679, 23391, 29463, 48251, 54579, 62037, 88389, 144753, 158539, 163737, 434259, 475617, 1109773, 1426851, 3329319, 9987957]

約数ペア:

[(1, 9987957), (3, 3329319), (7, 1426851), (9, 1109773), (21, 475617), (23, 434259), (61, 163737), (63, 158539), (69, 144753), (113, 88389), (161, 62037), (183, 54579), (207, 48251), (339, 29463), (427, 23391), (483, 20679), (549, 18193), (791, 12627), (1017, 9821), (1281, 7797), (1403, 7119), (1449, 6893), (2373, 4209), (2599, 3843)]