31942521

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{21001}}^1$

素因数の和:21033

約数の個数: 18

約数和(自身を含む): 49963758

約数和(自身を除く): 18021237

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 21001, 63003, 189009, 273013, 819039, 2457117, 3549169, 10647507, 31942521]

約数ペア:

[(1, 31942521), (3, 10647507), (9, 3549169), (13, 2457117), (39, 819039), (117, 273013), (169, 189009), (507, 63003), (1521, 21001)]