20557518

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1\times {\mathrm{271}}^1$

素因数の和:592

約数の個数: 32

約数和(自身を含む): 42301440

約数和(自身を除く): 21743922

約数列:

[1, 2, 3, 6, 47, 94, 141, 269, 271, 282, 538, 542, 807, 813, 1614, 1626, 12643, 12737, 25286, 25474, 37929, 38211, 72899, 75858, 76422, 145798, 218697, 437394, 3426253, 6852506, 10278759, 20557518]

約数ペア:

[(1, 20557518), (2, 10278759), (3, 6852506), (6, 3426253), (47, 437394), (94, 218697), (141, 145798), (269, 76422), (271, 75858), (282, 72899), (538, 38211), (542, 37929), (807, 25474), (813, 25286), (1614, 12737), (1626, 12643)]