20460279

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{593}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 32845824

約数和(自身を除く): 12385545

約数列:

[1, 3, 7, 21, 31, 53, 93, 159, 217, 371, 593, 651, 1113, 1643, 1779, 4151, 4929, 11501, 12453, 18383, 31429, 34503, 55149, 94287, 128681, 220003, 386043, 660009, 974299, 2922897, 6820093, 20460279]

約数ペア:

[(1, 20460279), (3, 6820093), (7, 2922897), (21, 974299), (31, 660009), (53, 386043), (93, 220003), (159, 128681), (217, 94287), (371, 55149), (593, 34503), (651, 31429), (1113, 18383), (1643, 12453), (1779, 11501), (4151, 4929)]