18911230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{145471}}^1$

素因数の和:145491

約数の個数: 16

約数和(自身を含む): 36658944

約数和(自身を除く): 17747714

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 145471, 290942, 727355, 1454710, 1891123, 3782246, 9455615, 18911230]

約数ペア:

[(1, 18911230), (2, 9455615), (5, 3782246), (10, 1891123), (13, 1454710), (26, 727355), (65, 290942), (130, 145471)]