27921285

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{647}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 55800576

約数和(自身を除く): 27879291

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 137, 315, 411, 647, 685, 959, 1233, 1941, 2055, 2877, 3235, 4529, 4795, 5823, 6165, 8631, 9705, 13587, 14385, 22645, 29115, 40761, 43155, 67935, 88639, 203805, 265917, 443195, 620473, 797751, 1329585, 1861419, 3102365, 3988755, 5584257, 9307095, 27921285]

約数ペア:

[(1, 27921285), (3, 9307095), (5, 5584257), (7, 3988755), (9, 3102365), (15, 1861419), (21, 1329585), (35, 797751), (45, 620473), (63, 443195), (105, 265917), (137, 203805), (315, 88639), (411, 67935), (647, 43155), (685, 40761), (959, 29115), (1233, 22645), (1941, 14385), (2055, 13587), (2877, 9705), (3235, 8631), (4529, 6165), (4795, 5823)]