261365559

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{136769}}^1$

素因数の和:136799

約数の個数: 24

約数和(自身を含む): 436569840

約数和(自身を除く): 175204281

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 136769, 410307, 957383, 1777997, 2872149, 5333991, 6701681, 12445979, 20105043, 37337937, 87121853, 261365559]

約数ペア:

[(1, 261365559), (3, 87121853), (7, 37337937), (13, 20105043), (21, 12445979), (39, 6701681), (49, 5333991), (91, 2872149), (147, 1777997), (273, 957383), (637, 410307), (1911, 136769)]