19903518

素因数分解:

$2^1\times 3^2\times {\mathrm{157}}^1\times {\mathrm{7043}}^1$

素因数の和:7208

約数の個数: 24

約数和(自身を含む): 43405128

約数和(自身を除く): 23501610

約数列:

[1, 2, 3, 6, 9, 18, 157, 314, 471, 942, 1413, 2826, 7043, 14086, 21129, 42258, 63387, 126774, 1105751, 2211502, 3317253, 6634506, 9951759, 19903518]

約数ペア:

[(1, 19903518), (2, 9951759), (3, 6634506), (6, 3317253), (9, 2211502), (18, 1105751), (157, 126774), (314, 63387), (471, 42258), (942, 21129), (1413, 14086), (2826, 7043)]