20816015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{193}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 28662336

約数和(自身を除く): 7846321

約数列:

[1, 5, 11, 37, 53, 55, 185, 193, 265, 407, 583, 965, 1961, 2035, 2123, 2915, 7141, 9805, 10229, 10615, 21571, 35705, 51145, 78551, 107855, 112519, 378473, 392755, 562595, 1892365, 4163203, 20816015]

約数ペア:

[(1, 20816015), (5, 4163203), (11, 1892365), (37, 562595), (53, 392755), (55, 378473), (185, 112519), (193, 107855), (265, 78551), (407, 51145), (583, 35705), (965, 21571), (1961, 10615), (2035, 10229), (2123, 9805), (2915, 7141)]