20498401

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 26966016

約数和(自身を除く): 6467615

約数列:

[1, 7, 11, 41, 43, 77, 151, 287, 301, 451, 473, 1057, 1661, 1763, 3157, 3311, 6191, 6493, 11627, 12341, 19393, 43337, 45451, 68101, 71423, 135751, 266213, 476707, 499961, 1863491, 2928343, 20498401]

約数ペア:

[(1, 20498401), (7, 2928343), (11, 1863491), (41, 499961), (43, 476707), (77, 266213), (151, 135751), (287, 71423), (301, 68101), (451, 45451), (473, 43337), (1057, 19393), (1661, 12341), (1763, 11627), (3157, 6493), (3311, 6191)]