156638993

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^2\times {\mathrm{193}}^1$

素因数の和:365

約数の個数: 24

約数和(自身を含む): 190449024

約数和(自身を除く): 33810031

約数列:

[1, 7, 23, 71, 161, 193, 497, 1351, 1633, 4439, 5041, 11431, 13703, 31073, 35287, 95921, 115943, 315169, 811601, 972913, 2206183, 6810391, 22376999, 156638993]

約数ペア:

[(1, 156638993), (7, 22376999), (23, 6810391), (71, 2206183), (161, 972913), (193, 811601), (497, 315169), (1351, 115943), (1633, 95921), (4439, 35287), (5041, 31073), (11431, 13703)]