19728163

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{503}}^1$

素因数の和:954

約数の個数: 16

約数和(自身を含む): 24385536

約数和(自身を除く): 4657373

約数列:

[1, 7, 13, 91, 431, 503, 3017, 3521, 5603, 6539, 39221, 45773, 216793, 1517551, 2818309, 19728163]

約数ペア:

[(1, 19728163), (7, 2818309), (13, 1517551), (91, 216793), (431, 45773), (503, 39221), (3017, 6539), (3521, 5603)]