21297455

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{769}}^1$

素因数の和:994

約数の個数: 16

約数和(自身を含む): 26611200

約数和(自身を除く): 5313745

約数列:

[1, 5, 29, 145, 191, 769, 955, 3845, 5539, 22301, 27695, 111505, 146879, 734395, 4259491, 21297455]

約数ペア:

[(1, 21297455), (5, 4259491), (29, 734395), (145, 146879), (191, 111505), (769, 27695), (955, 22301), (3845, 5539)]