16990191

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{379}}^1$

素因数の和:695

約数の個数: 24

約数和(自身を含む): 26142480

約数和(自身を除く): 9152289

約数列:

[1, 3, 9, 17, 51, 153, 293, 379, 879, 1137, 2637, 3411, 4981, 6443, 14943, 19329, 44829, 57987, 111047, 333141, 999423, 1887799, 5663397, 16990191]

約数ペア:

[(1, 16990191), (3, 5663397), (9, 1887799), (17, 999423), (51, 333141), (153, 111047), (293, 57987), (379, 44829), (879, 19329), (1137, 14943), (2637, 6443), (3411, 4981)]