28478871

素因数分解:

$3^5\times {\mathrm{163}}^1\times {\mathrm{719}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 42981120

約数和(自身を除く): 14502249

約数列:

[1, 3, 9, 27, 81, 163, 243, 489, 719, 1467, 2157, 4401, 6471, 13203, 19413, 39609, 58239, 117197, 174717, 351591, 1054773, 3164319, 9492957, 28478871]

約数ペア:

[(1, 28478871), (3, 9492957), (9, 3164319), (27, 1054773), (81, 351591), (163, 174717), (243, 117197), (489, 58239), (719, 39609), (1467, 19413), (2157, 13203), (4401, 6471)]