211572039

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{72481}}^1$

素因数の和:72630

約数の個数: 16

約数和(自身を含む): 324719360

約数和(自身を除く): 113147321

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 72481, 217443, 507367, 1522101, 10074859, 30224577, 70524013, 211572039]

約数ペア:

[(1, 211572039), (3, 70524013), (7, 30224577), (21, 10074859), (139, 1522101), (417, 507367), (973, 217443), (2919, 72481)]