18962785

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{991}}^1$

素因数の和:1128

約数の個数: 16

約数和(自身を含む): 23569920

約数和(自身を除く): 4607135

約数列:

[1, 5, 43, 89, 215, 445, 991, 3827, 4955, 19135, 42613, 88199, 213065, 440995, 3792557, 18962785]

約数ペア:

[(1, 18962785), (5, 3792557), (43, 440995), (89, 213065), (215, 88199), (445, 42613), (991, 19135), (3827, 4955)]