686298081

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{557}}^1\times {\mathrm{2551}}^1$

素因数の和:3141

約数の個数: 32

約数和(自身を含む): 1093644288

約数和(自身を除く): 407346207

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 557, 1671, 2551, 3899, 7653, 11697, 12811, 17857, 38433, 53571, 58673, 89677, 176019, 269031, 410711, 1232133, 1420907, 4262721, 9946349, 29839047, 32680861, 98042583, 228766027, 686298081]

約数ペア:

[(1, 686298081), (3, 228766027), (7, 98042583), (21, 32680861), (23, 29839047), (69, 9946349), (161, 4262721), (483, 1420907), (557, 1232133), (1671, 410711), (2551, 269031), (3899, 176019), (7653, 89677), (11697, 58673), (12811, 53571), (17857, 38433)]