2157997359

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1447349}}^1$

素因数の和:1447430

約数の個数: 16

約数和(自身を含む): 3334694400

約数和(自身を除く): 1176697041

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 1447349, 4342047, 10131443, 30394329, 102761779, 308285337, 719332453, 2157997359]

約数ペア:

[(1, 2157997359), (3, 719332453), (7, 308285337), (21, 102761779), (71, 30394329), (213, 10131443), (497, 4342047), (1491, 1447349)]