287972379

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{23719}}^1$

素因数の和:23815

約数の個数: 24

約数和(自身を含む): 444038400

約数和(自身を除く): 156066021

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 4047, 12141, 23719, 71157, 213471, 450661, 1351983, 1684049, 4055949, 5052147, 15156441, 31996931, 95990793, 287972379]

約数ペア:

[(1, 287972379), (3, 95990793), (9, 31996931), (19, 15156441), (57, 5052147), (71, 4055949), (171, 1684049), (213, 1351983), (639, 450661), (1349, 213471), (4047, 71157), (12141, 23719)]