199893687

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{25657}}^1$

素因数の和:25727

約数の個数: 24

約数和(自身を含む): 315901296

約数和(自身を除く): 116007609

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2597, 7791, 25657, 76971, 179599, 538797, 1257193, 1359821, 3771579, 4079463, 9518747, 28556241, 66631229, 199893687]

約数ペア:

[(1, 199893687), (3, 66631229), (7, 28556241), (21, 9518747), (49, 4079463), (53, 3771579), (147, 1359821), (159, 1257193), (371, 538797), (1113, 179599), (2597, 76971), (7791, 25657)]