20085993

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2477}}^1$

素因数の和:2553

約数の個数: 24

約数和(自身を含む): 31312008

約数和(自身を除く): 11226015

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2477, 2703, 7431, 8109, 22293, 42109, 126327, 131281, 378981, 393843, 1181529, 2231777, 6695331, 20085993]

約数ペア:

[(1, 20085993), (3, 6695331), (9, 2231777), (17, 1181529), (51, 393843), (53, 378981), (153, 131281), (159, 126327), (477, 42109), (901, 22293), (2477, 8109), (2703, 7431)]