31488021

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{2609}}^1$

素因数の和:2770

約数の個数: 20

約数和(自身を含む): 47371500

約数和(自身を除く): 15883479

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 2609, 4023, 7827, 12069, 23481, 70443, 211329, 388741, 1166223, 3498669, 10496007, 31488021]

約数ペア:

[(1, 31488021), (3, 10496007), (9, 3498669), (27, 1166223), (81, 388741), (149, 211329), (447, 70443), (1341, 23481), (2609, 12069), (4023, 7827)]