28495257

素因数分解:

$3^1\times 7^1\times {\mathrm{997}}^1\times {\mathrm{1361}}^1$

素因数の和:2368

約数の個数: 16

約数和(自身を含む): 43496832

約数和(自身を除く): 15001575

約数列:

[1, 3, 7, 21, 997, 1361, 2991, 4083, 6979, 9527, 20937, 28581, 1356917, 4070751, 9498419, 28495257]

約数ペア:

[(1, 28495257), (3, 9498419), (7, 4070751), (21, 1356917), (997, 28581), (1361, 20937), (2991, 9527), (4083, 6979)]