28814890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{221653}}^1$

素因数の和:221673

約数の個数: 16

約数和(自身を含む): 55856808

約数和(自身を除く): 27041918

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 221653, 443306, 1108265, 2216530, 2881489, 5762978, 14407445, 28814890]

約数ペア:

[(1, 28814890), (2, 14407445), (5, 5762978), (10, 2881489), (13, 2216530), (26, 1108265), (65, 443306), (130, 221653)]