247888988487

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{491}}^1\times {\mathrm{25603}}^1$

素因数の和:26420

約数の個数: 48

約数和(自身を含む): 411373118208

約数和(自身を除く): 163484129721

約数列:

[1, 3, 7, 9, 21, 63, 313, 491, 939, 1473, 2191, 2817, 3437, 4419, 6573, 10311, 19719, 25603, 30933, 76809, 153683, 179221, 230427, 461049, 537663, 1075781, 1383147, 1612989, 3227343, 8013739, 9682029, 12571073, 24041217, 37713219, 56096173, 72123651, 87997511, 113139657, 168288519, 263992533, 504865557, 791977599, 3934745849, 11804237547, 27543220943, 35412712641, 82629662829, 247888988487]

約数ペア:

[(1, 247888988487), (3, 82629662829), (7, 35412712641), (9, 27543220943), (21, 11804237547), (63, 3934745849), (313, 791977599), (491, 504865557), (939, 263992533), (1473, 168288519), (2191, 113139657), (2817, 87997511), (3437, 72123651), (4419, 56096173), (6573, 37713219), (10311, 24041217), (19719, 12571073), (25603, 9682029), (30933, 8013739), (76809, 3227343), (153683, 1612989), (179221, 1383147), (230427, 1075781), (461049, 537663)]