261841489

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4093}}^1$

素因数の和:4169

約数の個数: 32

約数和(自身を含む): 348481280

約数和(自身を除く): 86639791

約数列:

[1, 7, 13, 19, 37, 91, 133, 247, 259, 481, 703, 1729, 3367, 4093, 4921, 9139, 28651, 53209, 63973, 77767, 151441, 372463, 544369, 1010971, 1060087, 1968733, 2877379, 7076797, 13781131, 20141653, 37405927, 261841489]

約数ペア:

[(1, 261841489), (7, 37405927), (13, 20141653), (19, 13781131), (37, 7076797), (91, 2877379), (133, 1968733), (247, 1060087), (259, 1010971), (481, 544369), (703, 372463), (1729, 151441), (3367, 77767), (4093, 63973), (4921, 53209), (9139, 28651)]