21000638925

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13333739}}^1$

素因数の和:13333762

約数の個数: 36

約数和(自身を含む): 42987977760

約数和(自身を除く): 21987338835

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 13333739, 40001217, 66668695, 93336173, 120003651, 200006085, 280008519, 333343475, 466680865, 600018255, 840025557, 1000030425, 1400042595, 2333404325, 3000091275, 4200127785, 7000212975, 21000638925]

約数ペア:

[(1, 21000638925), (3, 7000212975), (5, 4200127785), (7, 3000091275), (9, 2333404325), (15, 1400042595), (21, 1000030425), (25, 840025557), (35, 600018255), (45, 466680865), (63, 333343475), (75, 280008519), (105, 200006085), (175, 120003651), (225, 93336173), (315, 66668695), (525, 40001217), (1575, 13333739)]