19618287

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{21871}}^1$

素因数の和:21910

約数の個数: 16

約数和(自身を含む): 29395968

約数和(自身を除く): 9777681

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 21871, 65613, 284323, 503033, 852969, 1509099, 6539429, 19618287]

約数ペア:

[(1, 19618287), (3, 6539429), (13, 1509099), (23, 852969), (39, 503033), (69, 284323), (299, 65613), (897, 21871)]