28165965

素因数分解:

$3^1\times 5^1\times {\mathrm{251}}^1\times {\mathrm{7481}}^1$

素因数の和:7740

約数の個数: 16

約数和(自身を含む): 45251136

約数和(自身を除く): 17085171

約数列:

[1, 3, 5, 15, 251, 753, 1255, 3765, 7481, 22443, 37405, 112215, 1877731, 5633193, 9388655, 28165965]

約数ペア:

[(1, 28165965), (3, 9388655), (5, 5633193), (15, 1877731), (251, 112215), (753, 37405), (1255, 22443), (3765, 7481)]