81289299

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{2273}}^1$

素因数の和:2427

約数の個数: 32

約数和(自身を含む): 134475264

約数和(自身を除く): 53185965

約数列:

[1, 3, 7, 13, 21, 39, 91, 131, 273, 393, 917, 1703, 2273, 2751, 5109, 6819, 11921, 15911, 29549, 35763, 47733, 88647, 206843, 297763, 620529, 893289, 2084341, 3870919, 6253023, 11612757, 27096433, 81289299]

約数ペア:

[(1, 81289299), (3, 27096433), (7, 11612757), (13, 6253023), (21, 3870919), (39, 2084341), (91, 893289), (131, 620529), (273, 297763), (393, 206843), (917, 88647), (1703, 47733), (2273, 35763), (2751, 29549), (5109, 15911), (6819, 11921)]