15983721

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2039}}^1$

素因数の和:2125

約数の個数: 24

約数和(自身を含む): 25247040

約数和(自身を除く): 9263319

約数列:

[1, 3, 9, 13, 39, 67, 117, 201, 603, 871, 2039, 2613, 6117, 7839, 18351, 26507, 79521, 136613, 238563, 409839, 1229517, 1775969, 5327907, 15983721]

約数ペア:

[(1, 15983721), (3, 5327907), (9, 1775969), (13, 1229517), (39, 409839), (67, 238563), (117, 136613), (201, 79521), (603, 26507), (871, 18351), (2039, 7839), (2613, 6117)]