28906105

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{4337}}^1$

素因数の和:4416

約数の個数: 16

約数和(自身を含む): 36647424

約数和(自身を除く): 7741319

約数列:

[1, 5, 31, 43, 155, 215, 1333, 4337, 6665, 21685, 134447, 186491, 672235, 932455, 5781221, 28906105]

約数ペア:

[(1, 28906105), (5, 5781221), (31, 932455), (43, 672235), (155, 186491), (215, 134447), (1333, 21685), (4337, 6665)]