20762665

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 10571735

約数列:

[1, 5, 7, 11, 35, 55, 77, 199, 271, 385, 995, 1355, 1393, 1897, 2189, 2981, 6965, 9485, 10945, 14905, 15323, 20867, 53929, 76615, 104335, 269645, 377503, 593219, 1887515, 2966095, 4152533, 20762665]

約数ペア:

[(1, 20762665), (5, 4152533), (7, 2966095), (11, 1887515), (35, 593219), (55, 377503), (77, 269645), (199, 104335), (271, 76615), (385, 53929), (995, 20867), (1355, 15323), (1393, 14905), (1897, 10945), (2189, 9485), (2981, 6965)]