28490697

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{1667}}^1$

素因数の和:1890

約数の個数: 20

約数和(自身を含む): 42787536

約数和(自身を除く): 14296839

約数列:

[1, 3, 9, 27, 81, 211, 633, 1667, 1899, 5001, 5697, 15003, 17091, 45009, 135027, 351737, 1055211, 3165633, 9496899, 28490697]

約数ペア:

[(1, 28490697), (3, 9496899), (9, 3165633), (27, 1055211), (81, 351737), (211, 135027), (633, 45009), (1667, 17091), (1899, 15003), (5001, 5697)]