205580921

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4421}}^1$

素因数の和:4521

約数の個数: 24

約数和(自身を含む): 261127944

約数和(自身を除く): 55547023

約数列:

[1, 7, 13, 49, 73, 91, 511, 637, 949, 3577, 4421, 6643, 30947, 46501, 57473, 216629, 322733, 402311, 2259131, 2816177, 4195529, 15813917, 29368703, 205580921]

約数ペア:

[(1, 205580921), (7, 29368703), (13, 15813917), (49, 4195529), (73, 2816177), (91, 2259131), (511, 402311), (637, 322733), (949, 216629), (3577, 57473), (4421, 46501), (6643, 30947)]