28878081

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 42700800

約数和(自身を除く): 13822719

約数列:

[1, 3, 19, 31, 57, 59, 93, 177, 277, 589, 831, 1121, 1767, 1829, 3363, 5263, 5487, 8587, 15789, 16343, 25761, 34751, 49029, 104253, 163153, 310517, 489459, 506633, 931551, 1519899, 9626027, 28878081]

約数ペア:

[(1, 28878081), (3, 9626027), (19, 1519899), (31, 931551), (57, 506633), (59, 489459), (93, 310517), (177, 163153), (277, 104253), (589, 49029), (831, 34751), (1121, 25761), (1767, 16343), (1829, 15789), (3363, 8587), (5263, 5487)]