1278889339

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{230389}}^1$

素因数の和:230470

約数の個数: 16

約数和(自身を含む): 1599828160

約数和(自身を除く): 320938821

約数列:

[1, 7, 13, 61, 91, 427, 793, 5551, 230389, 1612723, 2995057, 14053729, 20965399, 98376103, 182698477, 1278889339]

約数ペア:

[(1, 1278889339), (7, 182698477), (13, 98376103), (61, 20965399), (91, 14053729), (427, 2995057), (793, 1612723), (5551, 230389)]