20053557

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{2473}}^1$

素因数の和:2549

約数の個数: 24

約数和(自身を含む): 31261464

約数和(自身を除く): 11207907

約数列:

[1, 3, 9, 17, 51, 53, 153, 159, 477, 901, 2473, 2703, 7419, 8109, 22257, 42041, 126123, 131069, 378369, 393207, 1179621, 2228173, 6684519, 20053557]

約数ペア:

[(1, 20053557), (3, 6684519), (9, 2228173), (17, 1179621), (51, 393207), (53, 378369), (153, 131069), (159, 126123), (477, 42041), (901, 22257), (2473, 8109), (2703, 7419)]