19984097

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{389}}^1$

素因数の和:616

約数の個数: 16

約数和(自身を含む): 23587200

約数和(自身を除く): 3603103

約数列:

[1, 7, 41, 179, 287, 389, 1253, 2723, 7339, 15949, 51373, 69631, 111643, 487417, 2854871, 19984097]

約数ペア:

[(1, 19984097), (7, 2854871), (41, 487417), (179, 111643), (287, 69631), (389, 51373), (1253, 15949), (2723, 7339)]