287306487

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{821}}^1\times {\mathrm{997}}^1$

素因数の和:1840

約数の個数: 32

約数和(自身を含む): 459399360

約数和(自身を除く): 172092873

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 821, 997, 2463, 2991, 7389, 8973, 10673, 12961, 22167, 26919, 32019, 38883, 96057, 116649, 288171, 349947, 818537, 2455611, 7366833, 10640981, 22100499, 31922943, 95768829, 287306487]

約数ペア:

[(1, 287306487), (3, 95768829), (9, 31922943), (13, 22100499), (27, 10640981), (39, 7366833), (117, 2455611), (351, 818537), (821, 349947), (997, 288171), (2463, 116649), (2991, 96057), (7389, 38883), (8973, 32019), (10673, 26919), (12961, 22167)]