28480413

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{23557}}^1$

素因数の和:23604

約数の個数: 16

約数和(自身を含む): 42215936

約数和(自身を除く): 13735523

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 23557, 70671, 306241, 730267, 918723, 2190801, 9493471, 28480413]

約数ペア:

[(1, 28480413), (3, 9493471), (13, 2190801), (31, 918723), (39, 730267), (93, 306241), (403, 70671), (1209, 23557)]