156987999

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{2593}}^1$

素因数の和:2668

約数の個数: 36

約数和(自身を含む): 267887568

約数和(自身を除く): 110899569

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 961, 1953, 2593, 2883, 6727, 7779, 8649, 18151, 20181, 23337, 54453, 60543, 80383, 163359, 241149, 562681, 723447, 1688043, 2491873, 5064129, 7475619, 17443111, 22426857, 52329333, 156987999]

約数ペア:

[(1, 156987999), (3, 52329333), (7, 22426857), (9, 17443111), (21, 7475619), (31, 5064129), (63, 2491873), (93, 1688043), (217, 723447), (279, 562681), (651, 241149), (961, 163359), (1953, 80383), (2593, 60543), (2883, 54453), (6727, 23337), (7779, 20181), (8649, 18151)]