1820273

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:344

約数の個数: 16

約数和(自身を含む): 2276736

約数和(自身を除く): 456463

約数列:

[1, 7, 13, 83, 91, 241, 581, 1079, 1687, 3133, 7553, 20003, 21931, 140021, 260039, 1820273]

約数ペア:

[(1, 1820273), (7, 260039), (13, 140021), (83, 21931), (91, 20003), (241, 7553), (581, 3133), (1079, 1687)]