1991175

素因数分解:

$3^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 3333120

約数和(自身を除く): 1341945

約数列:

[1, 3, 5, 15, 25, 75, 139, 191, 417, 573, 695, 955, 2085, 2865, 3475, 4775, 10425, 14325, 26549, 79647, 132745, 398235, 663725, 1991175]

約数ペア:

[(1, 1991175), (3, 663725), (5, 398235), (15, 132745), (25, 79647), (75, 26549), (139, 14325), (191, 10425), (417, 4775), (573, 3475), (695, 2865), (955, 2085)]