1991567145

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{71807}}^1$

素因数の和:71901

約数の個数: 24

約数和(自身を含む): 3262381056

約数和(自身を除く): 1270813911

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 1849, 5547, 9245, 27735, 71807, 215421, 359035, 1077105, 3087701, 9263103, 15438505, 46315515, 132771143, 398313429, 663855715, 1991567145]

約数ペア:

[(1, 1991567145), (3, 663855715), (5, 398313429), (15, 132771143), (43, 46315515), (129, 15438505), (215, 9263103), (645, 3087701), (1849, 1077105), (5547, 359035), (9245, 215421), (27735, 71807)]