19527805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 27371520

約数和(自身を除く): 7843715

約数列:

[1, 5, 11, 23, 43, 55, 115, 215, 253, 359, 473, 989, 1265, 1795, 2365, 3949, 4945, 8257, 10879, 15437, 19745, 41285, 54395, 77185, 90827, 169807, 355051, 454135, 849035, 1775255, 3905561, 19527805]

約数ペア:

[(1, 19527805), (5, 3905561), (11, 1775255), (23, 849035), (43, 454135), (55, 355051), (115, 169807), (215, 90827), (253, 77185), (359, 54395), (473, 41285), (989, 19745), (1265, 15437), (1795, 10879), (2365, 8257), (3949, 4945)]