81439917

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{29}}^2\times {\mathrm{191}}^1$

素因数の和:278

約数の個数: 36

約数和(自身を含む): 122413824

約数和(自身を除く): 40973907

約数列:

[1, 3, 13, 29, 39, 87, 169, 191, 377, 507, 573, 841, 1131, 2483, 2523, 4901, 5539, 7449, 10933, 14703, 16617, 32279, 32799, 72007, 96837, 142129, 160631, 216021, 426387, 481893, 936091, 2088203, 2808273, 6264609, 27146639, 81439917]

約数ペア:

[(1, 81439917), (3, 27146639), (13, 6264609), (29, 2808273), (39, 2088203), (87, 936091), (169, 481893), (191, 426387), (377, 216021), (507, 160631), (573, 142129), (841, 96837), (1131, 72007), (2483, 32799), (2523, 32279), (4901, 16617), (5539, 14703), (7449, 10933)]