1891569407

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{149543}}^1$

素因数の和:149702

約数の個数: 16

約数和(自身を含む): 2344849920

約数和(自身を除く): 453280513

約数列:

[1, 7, 13, 91, 139, 973, 1807, 12649, 149543, 1046801, 1944059, 13608413, 20786477, 145505339, 270224201, 1891569407]

約数ペア:

[(1, 1891569407), (7, 270224201), (13, 145505339), (91, 20786477), (139, 13608413), (973, 1944059), (1807, 1046801), (12649, 149543)]