21719165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{2957}}^1$

素因数の和:3088

約数の個数: 16

約数和(自身を含む): 28325808

約数和(自身を除く): 6606643

約数列:

[1, 5, 13, 65, 113, 565, 1469, 2957, 7345, 14785, 38441, 192205, 334141, 1670705, 4343833, 21719165]

約数ペア:

[(1, 21719165), (5, 4343833), (13, 1670705), (65, 334141), (113, 192205), (565, 38441), (1469, 14785), (2957, 7345)]